Engineeringness on MSN

How LEDs Work: The Tiny Lights Inside Everything You Use

This video explains how LEDs (Light Emitting Diodes) work and why they’ve become one of the most important components in ...
Wall Street Journal

How to Choose an LED Therapy Mask, According to Dermatologists

In the era of Zoom calls and hybrid work, more of us are investing in at-home beauty services. LED, or light-emitting diode, therapy devices are the latest trend to hit this beauty space. Unlike ...