Adafruit
Cool White LED Ring Light PCB - 70mm Diameter - 5V Power
This cool white LED ring light is a slim, bright PCB ring that makes it easy to add even lighting to costuming, photo/video projects, or any build that needs...
This cool white LED ring light is a slim, bright PCB ring that makes it easy to add even lighting to costuming, photo/video projects, or any build that needs a clean ring of light. Just supply 5 V at up to 500 mA and it lights up immediately — no addressable LED library or microcontroller required.
The entire ring switches on/off together (these are not individually addressable NeoPixel LEDs). You can dim it using a PWM signal on the power line.
Key Features
- Cool White LEDs – Bright, even illumination in a ring layout
- 70 mm Diameter – Compact ring-shaped PCB
- 5 V Power – Simple two-wire connection, up to 500 mA
- PWM Dimmable – Control brightness with a PWM signal
- Slim Profile – Thin PCB fits into tight spaces
Ideal For
- Photography and video ring lighting
- Cosplay and costume lighting effects
- Macro photography illumination
- Decorative and accent lighting
Jargon buster
Plain-language definitions for the technical terms used above.
- duty cycle
- The fraction of time a signal or light source is switched on during a repeating cycle. On a proximity sensor, changing the duty cycle can affect detection range, response speed, accuracy and power use.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
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Related Tutorials
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