Building DIY LED lights

Summary by Krater

This video explains how LEDs work, why they produce white light using phosphors, and how to build a high-power floodlight using a 10W COB LED, a computer heatsink, and a USB-C power bank with a voltage regulator.

From the video

Answers: How do LEDs work and how do I build a DIY high-power LED floodlight?

• LED operation and physics
• Color temperature and CRI in LEDs
• COB LEDs and high-power applications
• Current control and resistor methods
• Building a DIY USB-C floodlight

What it concludes

• White LEDs use a single blue emitter coated with a phosphor mix that gets excited to emit lower wavelengths across the visible spectrum.
• Higher quality phosphors stretch the output spectrum, resulting in a higher Color Rendering Index.
• LEDs are current-sensitive devices, meaning they will draw far more current than designed for if given the chance, which reduces their lifespan.
• A 10W COB LED requires a heatsink to dissipate heat generated during operation.
• Using a voltage regulator with constant current control allows you to power a high-power LED safely from a USB-C power bank.