What's inside an LED bulb?

Published Aug 20, 2019

We took apart two LED lightbulbs, a CREE LED bulb from 2014 and a Philips bulb from 2018, and compared their build quality, the electronics, and their overall design. It was fascinating to see the differences in approaches they took and the challenges they faced with rectifying the incoming power and also keeping temperatures reasonable so the electronics don't fry.

LEDs (14)

Authored By

Josh Bishop

Interested in embedded systems, hiking, cooking, and reading, Josh got his bachelor's degree in Electrical Engineering from Boise State University. After a few years as a CEC Officer (Seabee) in the US Navy, Josh separated and eventually started working on CircuitBread with a bunch of awesome people. Josh currently lives in southern Idaho with his wife and four kids.

Next up:

Bipolar Junction Transistor (BJT) - Basic Structure and Operation