Search results for: '45 45 160VA Toroidal Transformer'

We could not find anything for 45 45 160VA Toroidal Transformer
We could not find anything for 45 45 160VA Toroidal Transformer

How To Complete Your First Resin 3D Print

So, you have set up your shiny new resin 3D printer and now want to produce beautiful models. Well, this tutorial will tell you exactly what to do from filling the tank, starting a print via USB then the removal, cleaning, and final UV ligh...

So, you have set up your shiny new resin 3D printer and now want to produce beautiful models. Well, this tutorial will tell you exactly what to do from filling the tank, starting a print via USB then the removal, cleaning, and final UV ligh...

IoT with LoRaWAN, Pycom, The Things Network & Node-RED

Note: With the rollout of TTNv3, the "Setup" section of this guide no longer works - but we're keeping it here for posterity. Let us know on our forums if you need help getting started with the new method. In our two previous Pycom article...

Note: With the rollout of TTNv3, the "Setup" section of this guide no longer works - but we're keeping it here for posterity. Let us know on our forums if you need help getting started with the new method. In our two previous Pycom article...

All About EL Products

Electroluminescent wire, often referred to as EL wire, is a thin copper wire coated in phosphor which will produce light when alternating current is applied to it. The light emits a similar feel as if it were a neon light or ...

Electroluminescent wire, often referred to as EL wire, is a thin copper wire coated in phosphor which will produce light when alternating current is applied to it. The light emits a similar feel as if it were a neon light or ...

Support Material: Printing and Removal

By default, FFF/FDM 3D Printers require the 3D Models they print to grow up from the Print bed at an angle of 45 or more. This is by far the biggest limitation of all 3D Printers. To print models that don't follow that rule, and have parts ...

By default, FFF/FDM 3D Printers require the 3D Models they print to grow up from the Print bed at an angle of 45 or more. This is by far the biggest limitation of all 3D Printers. To print models that don't follow that rule, and have parts ...

Oscilloscope Triggers: A quick what and how

So we have vertical graphing of voltage and horizontal sweep, but our signal is just going to go bananas on our screen if we don't sweep at the same point in the waveform. That's where triggers come in, allowing us multiple ways to fix ou...

So we have vertical graphing of voltage and horizontal sweep, but our signal is just going to go bananas on our screen if we don't sweep at the same point in the waveform. That's where triggers come in, allowing us multiple ways to fix ou...

Designing FDM 3D Printed Parts for Manufacture

Recently, we've talked a lot about Slicing software, settings, materials and the like. It's time to take a deeper dive into the actual design of model files. We've got a basics guide for Computer Aided Design available here. We're going to ...

Recently, we've talked a lot about Slicing software, settings, materials and the like. It's time to take a deeper dive into the actual design of model files. We've got a basics guide for Computer Aided Design available here. We're going to ...

Using your Arbitrary Waveform Generator

By now you are aware that when it comes to measuring electronic signals, oscilloscopes are what you are going to be using. However, if you were providing a circuit with a particular signal, a function generator is the perfect tool for tha...

By now you are aware that when it comes to measuring electronic signals, oscilloscopes are what you are going to be using. However, if you were providing a circuit with a particular signal, a function generator is the perfect tool for tha...

Our Guide for Arduino Beginner Kits

Kits are a pretty nifty idea for someone starting out in maker electronics. For this beginner-friendly article, we are just going to take a look at three of our great kits for the Arduino Uno. All three are all solder-free electronics ...

Kits are a pretty nifty idea for someone starting out in maker electronics. For this beginner-friendly article, we are just going to take a look at three of our great kits for the Arduino Uno. All three are all solder-free electronics ...

Installing Python Packages

So, you want Python to do something very functional but do not feel like writing heaps of code to achieve that functionality? Then look no further, this guide will teach you exactly how to do that by utilising Python Packages. Python P...

So, you want Python to do something very functional but do not feel like writing heaps of code to achieve that functionality? Then look no further, this guide will teach you exactly how to do that by utilising Python Packages. Python P...

Rigol's PC software: Ultra-Sigma and beyond

The ability to connect your test equipment to a local PC is invaluable. It allows monitoring and the use of your equipment via a PC interface. That includes coveted mouse/keyboard control! This control centre capability is essential when yo...

The ability to connect your test equipment to a local PC is invaluable. It allows monitoring and the use of your equipment via a PC interface. That includes coveted mouse/keyboard control! This control centre capability is essential when yo...

Your First LoRaWAN Node on The Things Network

Note: With the rollout of TTNv3, the "Setup" section of this guide no longer works - but we're keeping it here for posterity. Let us know on our forums if you need help getting started with the new method. In the lasts article we looked at...

Note: With the rollout of TTNv3, the "Setup" section of this guide no longer works - but we're keeping it here for posterity. Let us know on our forums if you need help getting started with the new method. In the lasts article we looked at...

Detect and Track Humans with mmWave Radar on an Arduino

In this guide, we are going to be learning how to use the Rd-03D radar sensor to detect and track humans in your next Arduino project. We will be looking at how it works and what you can expect from it, how to wire up and code your Arduino...

In this guide, we are going to be learning how to use the Rd-03D radar sensor to detect and track humans in your next Arduino project. We will be looking at how it works and what you can expect from it, how to wire up and code your Arduino...

Getting Started with micro:bit

Check out our micro:bit in the classroom video if you'd like to see how micro:bit integrates into classrooms, years 7-12. After a quick review of the hardware, we'll fire up a micro:bit and write our first program. All you...

Check out our micro:bit in the classroom video if you'd like to see how micro:bit integrates into classrooms, years 7-12. After a quick review of the hardware, we'll fire up a micro:bit and write our first program. All you...

Webhooks with Particle.io

Have you ever heard people talk about how amazing the Internet of Things is and how you can leverage the power of the internet by creating IoT devices, but not really known how to get started? This tutorial is for you! We’re going to ...

Have you ever heard people talk about how amazing the Internet of Things is and how you can leverage the power of the internet by creating IoT devices, but not really known how to get started? This tutorial is for you! We’re going to ...

Our Review of the MOARstruder by Lulzbot

Toolheads for your 3D printer come in all shapes and sizes. The different models available from Lulzbot are all designed with a specific purpose in mind, usually to add a filament type to your 3D printing repertoire. Dual extruders enable y...

Toolheads for your 3D printer come in all shapes and sizes. The different models available from Lulzbot are all designed with a specific purpose in mind, usually to add a filament type to your 3D printing repertoire. Dual extruders enable y...

Using the Accelerometer with MakeCode: Adafruit Circuit Playground Express

At the heart of every Adafruit Circuit Playground Express lies a three-axis accelerometer. This allows us to write programs that take the orientation of the board into account. We can detect orientation and acceleration on any axis. With Ma...

At the heart of every Adafruit Circuit Playground Express lies a three-axis accelerometer. This allows us to write programs that take the orientation of the board into account. We can detect orientation and acceleration on any axis. With Ma...

Cura: 3D printing software for your Lulzbot Printer

Once you setup your printer and finish printing your first rocktopus, you will inevitably want to move onto more ambitious prints right away. It’s understandable, all the possibilities all at once, I get it. We are going to step you ...

Once you setup your printer and finish printing your first rocktopus, you will inevitably want to move onto more ambitious prints right away. It’s understandable, all the possibilities all at once, I get it. We are going to step you ...

C Programming for Makers

Welcome to the C Programming Workshop for Makers! Here you'll be able to follow along with our series of easily digestible videos that cover everything you'll need to know to on your way with C programming and start making awesome projects...

Welcome to the C Programming Workshop for Makers! Here you'll be able to follow along with our series of easily digestible videos that cover everything you'll need to know to on your way with C programming and start making awesome projects...

LCD Screens and the Arduino Uno

Display devices are used to visually display the information we are working with. LCD (Liquid Crystal Display) screens are one of many display devices that makers use. We have libraries to control specific LCD functions which make it ridicu...

Display devices are used to visually display the information we are working with. LCD (Liquid Crystal Display) screens are one of many display devices that makers use. We have libraries to control specific LCD functions which make it ridicu...

Getting Started With EMG Muscle Sensors | Measure Muscle Flexing!

In this guide, we’re going to be exploring muscle sensors, also known as Electromyography (EMG) sensors, and learning how to use them to measure muscle movement in maker projects. These clever little modules can pick up the tiny volt...

In this guide, we’re going to be exploring muscle sensors, also known as Electromyography (EMG) sensors, and learning how to use them to measure muscle movement in maker projects. These clever little modules can pick up the tiny volt...

CPE (PETG) - My Trick to 3D Print It Beautifully and More

Co-Polyester is an astounding material in terms of properties, all the best properties of Tough PLA and ABS which are then dialled up just that extra bit in regards to both ruggedness and durability. Ultimaker offers two versions of Co-Poly...

Co-Polyester is an astounding material in terms of properties, all the best properties of Tough PLA and ABS which are then dialled up just that extra bit in regards to both ruggedness and durability. Ultimaker offers two versions of Co-Poly...

Make 3D Prints Look Like Chrome and Steel - Metallic Paints and Finishes For 3D Prints

Demonstrated here are two metallic finishes, that you can do to any 3D print, that will astound your friends and family when you tell them 'It was actually 3D printed and these are not metal at all'. These finishes are perfect to use for co...

Demonstrated here are two metallic finishes, that you can do to any 3D print, that will astound your friends and family when you tell them 'It was actually 3D printed and these are not metal at all'. These finishes are perfect to use for co...

How to add mmWave Radar to a Pico | Detect and Track Humans

In this guide, we will be learning how to use the RD-03D radar sensor with a Raspberry Pi Pico so you can detect and track humans in your next project. We will be looking at how it operates and what you will get out of it,  how to con...

In this guide, we will be learning how to use the RD-03D radar sensor with a Raspberry Pi Pico so you can detect and track humans in your next project. We will be looking at how it operates and what you will get out of it,  how to con...

Create Fantastic Finishes on 3D Printed Components

A special part of me enjoys it when people go ‘I cannot believe that was 3D printed’ and one of the best ways to get that reaction is through post-processing. Now not to belittle the beauty of a raw print result you can achieve ...

A special part of me enjoys it when people go ‘I cannot believe that was 3D printed’ and one of the best ways to get that reaction is through post-processing. Now not to belittle the beauty of a raw print result you can achieve ...

Pycom Pytrack Getting Started

In this getting started guide we’ll use the Pytrack from Pycom to detect our location on Earth using the onboard GPS module and use the accelerometer to control a 3D model on the PC. I put a WiPy onto my Pytrack, connected it to ...

In this getting started guide we’ll use the Pytrack from Pycom to detect our location on Earth using the onboard GPS module and use the accelerometer to control a 3D model on the PC. I put a WiPy onto my Pytrack, connected it to ...

Raspberry Pi AI HAT 1 vs AI HAT 2: Which Should You Buy?

From an arm's length away, the new AI HAT+ 2 and the original AI HAT+ 1 look pretty similar, but pop the hood, and you'll find there are quite a few differences to get excited about. In this guide, we are going to take a look at what these...

From an arm's length away, the new AI HAT+ 2 and the original AI HAT+ 1 look pretty similar, but pop the hood, and you'll find there are quite a few differences to get excited about. In this guide, we are going to take a look at what these...

Makera Carvera Overview | The Most Approachable Industrial Desktop CNC Mill?

The Makera Carvera touts itself as a beginner-friendly CNC milling machine capable of carving through wood, plastic, brass, and aluminium, all while keeping a compact desktop footprint that still offers a highly capable 360 by 240 millimet...

The Makera Carvera touts itself as a beginner-friendly CNC milling machine capable of carving through wood, plastic, brass, and aluminium, all while keeping a compact desktop footprint that still offers a highly capable 360 by 240 millimet...

DIY Solder Stencils with a Laser-Cutter

When it comes to assembling a prototype Printed Circuit Board (PCB), there are a couple of options for applying solder-paste: Paste each individual pad by hand with a syringe, or; Use a stencil to paste all pads in one pass. The firs...

When it comes to assembling a prototype Printed Circuit Board (PCB), there are a couple of options for applying solder-paste: Paste each individual pad by hand with a syringe, or; Use a stencil to paste all pads in one pass. The firs...

Makerverse Audio Kit Guide | Play Music and Generate Tones

IntroductionWelcome to the guide for the Makerverse Audio Kit. This kit will allow you to build a music player, a musical keyboard, and a sound effect soundboard! To follow along you will need: The Makerverse Audio Kit The Makerverse ...

IntroductionWelcome to the guide for the Makerverse Audio Kit. This kit will allow you to build a music player, a musical keyboard, and a sound effect soundboard! To follow along you will need: The Makerverse Audio Kit The Makerverse ...

Video Looper with Raspberry Pi 4 Model B

[Update: The OMXPlayer system, needed for the video looper, has been dropped with the recent 'Bullseye' Raspberry Pi OS. Updates are coming out fast and all the teething troubles from this new OS will be ironed out. For now, download and f...

[Update: The OMXPlayer system, needed for the video looper, has been dropped with the recent 'Bullseye' Raspberry Pi OS. Updates are coming out fast and all the teething troubles from this new OS will be ironed out. For now, download and f...

What is the ESP32

The ESP8266 is the Serial to Wi-Fi SOC gaining steam back in August of 2014, no doubt you've heard of it; if not used one yourself. Since then, hundreds of IoT devices were built on this originally-undocumented device. With those projects a...

The ESP8266 is the Serial to Wi-Fi SOC gaining steam back in August of 2014, no doubt you've heard of it; if not used one yourself. Since then, hundreds of IoT devices were built on this originally-undocumented device. With those projects a...

Face Recognition With Raspberry Pi and OpenCV

In this guide, we are going to be teaching you how to set up your Rasberry Pi to detect and recognise faces using OpenCV and the Facial-Recognition library, two fantastic open-source projects. In this set up all of the data and processing ...

In this guide, we are going to be teaching you how to set up your Rasberry Pi to detect and recognise faces using OpenCV and the Facial-Recognition library, two fantastic open-source projects. In this set up all of the data and processing ...

Getting Started with the Grove Vision AI V2 | Power Efficient Object Detection

In this guide, we will be exploring the Grove Vision AI V2 – a microcontroller-based board capable of running YOLO and other computer vision models in real time, all while consuming a relatively tiny amount of power. We’re goin...

In this guide, we will be exploring the Grove Vision AI V2 – a microcontroller-based board capable of running YOLO and other computer vision models in real time, all while consuming a relatively tiny amount of power. We’re goin...

Windows 10 IoT on Raspberry Pi 3

Today we’re going to look at installing the Windows 10 IoT (Internet of Things) core onto a Raspberry Pi 3. Traditionally Windows has been the resident overlord of desktop devices, however in recent years we’ve seen it t...

Today we’re going to look at installing the Windows 10 IoT (Internet of Things) core onto a Raspberry Pi 3. Traditionally Windows has been the resident overlord of desktop devices, however in recent years we’ve seen it t...

Using Slicer for Fusion360 for Laser Cutting

Laser cutting is a very fast production and manufacturing method that has one limitation. You can only cut flat surfaces! Well don’t let that stop you from creating 3D objects and sculptures with a laser cutter, Fusion360 has a great ...

Laser cutting is a very fast production and manufacturing method that has one limitation. You can only cut flat surfaces! Well don’t let that stop you from creating 3D objects and sculptures with a laser cutter, Fusion360 has a great ...

Raspberry Pi vs. LattePanda

Ah, what a glorious time we live in, where we have to compare which micro-computer is going to best suit our needs. If you’ve been in the maker sphere for just a short time, you’ll be sure to have heard of Raspberry Pi the mirac...

Ah, what a glorious time we live in, where we have to compare which micro-computer is going to best suit our needs. If you’ve been in the maker sphere for just a short time, you’ll be sure to have heard of Raspberry Pi the mirac...

Media Centre with Kodi and LibreELEC - Raspberry Pi 4 Model B

You ever wanted an Ad-Free and Bloatware Free Media Streaming Device that can run 4K movies with clean audio that transforms any Screen into a Smart TV. Sounds almost too good to be true but Raspberry Pi, Kodi and LibreELEC OS have swooped ...

You ever wanted an Ad-Free and Bloatware Free Media Streaming Device that can run 4K movies with clean audio that transforms any Screen into a Smart TV. Sounds almost too good to be true but Raspberry Pi, Kodi and LibreELEC OS have swooped ...

Getting Started with Moondream on the Pi 5 | Human-Like Computer Vision

In this guide, we will be exploring Moondream, a computer vision model that analyses images and applies human reasoning to them, allowing you to ask questions about the image in natural human language. We are going to be learning what Moon...

In this guide, we will be exploring Moondream, a computer vision model that analyses images and applies human reasoning to them, allowing you to ask questions about the image in natural human language. We are going to be learning what Moon...

Getting Hands-on with Sensors

What good is a robot if it can’t interact with the environment around it? Sensors are the backbone of almost every electronics project as they allow your program to make decisions based on external stimuli. We’ve got sensors for...

What good is a robot if it can’t interact with the environment around it? Sensors are the backbone of almost every electronics project as they allow your program to make decisions based on external stimuli. We’ve got sensors for...

Python Variables and Types

Continuing our Python journey deeper into this dynamo of a programming language we will take a leap into variables and types. Variables are one of the most fundamental concepts and exist in pretty much all programming languages. Variables a...

Continuing our Python journey deeper into this dynamo of a programming language we will take a leap into variables and types. Variables are one of the most fundamental concepts and exist in pretty much all programming languages. Variables a...

Getting Started with the Carvera | MakeraCAM Tutorial

In this guide, we will be learning how to use the Makera Carvera to mill an ice stamp tray - a heavy piece of metal that imprints decorative patterns into a block of ice. We will be taking a look at what stock materials to choose, how to s...

In this guide, we will be learning how to use the Makera Carvera to mill an ice stamp tray - a heavy piece of metal that imprints decorative patterns into a block of ice. We will be taking a look at what stock materials to choose, how to s...

DIY 2D and 3D Spatial Tracking with Ultra-Wideband | Arduino & Pico Guide

In this guide, we are going to learn how to use a series of Ultra-Wideband modules to track an object in both 2D and 3D space. By the end of this guide, you will be equipped with the skills and code to use up to nine modules in your maker ...

In this guide, we are going to learn how to use a series of Ultra-Wideband modules to track an object in both 2D and 3D space. By the end of this guide, you will be equipped with the skills and code to use up to nine modules in your maker ...

Cheap Deluxe Resin Curing Chamber

After purchasing an Anycubic Photon resin printer, I wanted an easy and reliable method for post-curing the prints. This allows the printed resin to achieve maximum material strength and eliminate tackiness in...

After purchasing an Anycubic Photon resin printer, I wanted an easy and reliable method for post-curing the prints. This allows the printed resin to achieve maximum material strength and eliminate tackiness in...

safePower

I like working with the Pi Zero W and Pi 4 as they are very compact, very powerful and very cheap for the capability they offer. I want to use them on small projects, stand-alone, and can't always guarantee power. As we know most Pi's don't...

I like working with the Pi Zero W and Pi 4 as they are very compact, very powerful and very cheap for the capability they offer. I want to use them on small projects, stand-alone, and can't always guarantee power. As we know most Pi's don't...

Math Scroller

I was looking for something educational to 3D-Print for my child in Thingiverse and came across the concept of the Math Spinner. I found the models lacked a method of checking the answer so I wanted to automate it. The core design is inspir...

I was looking for something educational to 3D-Print for my child in Thingiverse and came across the concept of the Math Spinner. I found the models lacked a method of checking the answer so I wanted to automate it. The core design is inspir...

grinder_timer

Making a dumb coffee grinder slightly less dumb. This is a programmable timer tethered to a Rancilio Rocky coffee grinder. The Rocky is a "dumb" grinder and electrically very simple. Basically it's an ac motor with an on/off switch and a m...

Making a dumb coffee grinder slightly less dumb. This is a programmable timer tethered to a Rancilio Rocky coffee grinder. The Rocky is a "dumb" grinder and electrically very simple. Basically it's an ac motor with an on/off switch and a m...

Circadian Lighting

After experimenting with automatic blue light filters on my electronic devices I wanted to replicate the idea with the lighting around the house so that it would gradually transition...

After experimenting with automatic blue light filters on my electronic devices I wanted to replicate the idea with the lighting around the house so that it would gradually transition...

PowerPlay SSR Control

Introduction

The aim of PowerPlay is to provide an Arduino platform for managing downstream Solid State Relays (SSR) simply and safely.  PowerPlay consists of a custom Arduino Shield, ...

Introduction

The aim of PowerPlay is to provide an Arduino platform for managing downstream Solid State Relays (SSR) simply and safely.  PowerPlay consists of a custom Arduino Shield, ...

Arduino Tide Gauge

I used an Arduino and a US-100 ultrasonic sensor to make an extremely low-cost tide gauge. This project measures the tide by sensing the distance to water using a US-100 ultrasonic sensor. The device has a 3D printed base&nb...

I used an Arduino and a US-100 ultrasonic sensor to make an extremely low-cost tide gauge. This project measures the tide by sensing the distance to water using a US-100 ultrasonic sensor. The device has a 3D printed base&nb...

IoT Soundscape

I had been captivated by the sound levels of trains I could hear passing by Metford throughout the day/night. I wondered if a sound level sensor reporting data back over LoRa would help me understand when a train was noisy. I also like the ...

I had been captivated by the sound levels of trains I could hear passing by Metford throughout the day/night. I wondered if a sound level sensor reporting data back over LoRa would help me understand when a train was noisy. I also like the ...

Hydra Bluetooth Speaker

Wow - this is one monstrous sounding and great looking speaker - even if I do say so myself! This is basically a 2.1 (stereo + subwoofer) system made with 3D plastic parts. Both the full range and subwoofer speakers are based on closed (se...

Wow - this is one monstrous sounding and great looking speaker - even if I do say so myself! This is basically a 2.1 (stereo + subwoofer) system made with 3D plastic parts. Both the full range and subwoofer speakers are based on closed (se...

VolCon

This project began as an experiment when I inexplicably decided to learn how an optical rotary encoder worked (FYI, 2-bit gray code). It transformed into a learning experience around USB - specifically the HID protocol. Ultimately I ended u...

This project began as an experiment when I inexplicably decided to learn how an optical rotary encoder worked (FYI, 2-bit gray code). It transformed into a learning experience around USB - specifically the HID protocol. Ultimately I ended u...

Hogwarts Lights

Although there are commercially available lighting kits for Lego models, we found those that are available for this Hogwarts Castle can seem a little garish and don’t do the best job at concealing the wires.  We felt that with t...

Although there are commercially available lighting kits for Lego models, we found those that are available for this Hogwarts Castle can seem a little garish and don’t do the best job at concealing the wires.  We felt that with t...

Hogwarts Legacy Broom Flight Controller

Introduction

I embarked on this project to enhance my interactive and immersive experience with the video game "Hogwarts Legacy," as a devoted Harry Potter fan. Initially, I used a Kano wan...

Introduction

I embarked on this project to enhance my interactive and immersive experience with the video game "Hogwarts Legacy," as a devoted Harry Potter fan. Initially, I used a Kano wan...

UNITRAC

The UNITRAC (UNIversal TRACtion system) is a simple 3D printable conversion for the Black Gladiator-Tracked chassis, It’s designed to transform the large wheelbase platform into a self-contained propulsion system that has all the torq...

The UNITRAC (UNIversal TRACtion system) is a simple 3D printable conversion for the Black Gladiator-Tracked chassis, It’s designed to transform the large wheelbase platform into a self-contained propulsion system that has all the torq...

Borg Cube for Scouts STEM Camp

Introduction

What does one make for a Startrek-themed STEM camp for Scouts? Especially when given the Search and Rescue (SAR) activity base to run.  Why this base you ask? Usually I run a radio d...

Introduction

What does one make for a Startrek-themed STEM camp for Scouts? Especially when given the Search and Rescue (SAR) activity base to run.  Why this base you ask? Usually I run a radio d...

HUGE LED Pixel Panel

I’ve always been fascinated by LED screens and seeing beautiful colours mix and merge to create vibrant displays. I also love games, so what better way to combine the two than a giant LED pixel matrix which can play games, display aud...

I’ve always been fascinated by LED screens and seeing beautiful colours mix and merge to create vibrant displays. I also love games, so what better way to combine the two than a giant LED pixel matrix which can play games, display aud...
Heads up! Our forum has separate search to our main website. You are about to be redirected to our forum and when you arrive you can search for forum only content using the icon shown below. Click continue to search our forum.

Forum Search
Feedback

Please continue if you would like to leave feedback for any of these topics:

  • Website features/issues
  • Content errors/improvements
  • Missing products/categories
  • Product assignments to categories
  • Search results relevance

For all other inquiries (orders status, stock levels, etc), please contact our support team for quick assistance.

Note: click continue and a draft email will be opened to edit. If you don't have an email client on your device, then send a message via the chat icon on the bottom left of our website.

Makers love reviews as much as you do, please follow this link to review the products you have purchased.