LED bulbs that flicker, and CFLs that almost never did
27:59
Bright from the Start: GE's CFL with an incandescent trick up its sleeve
30:03
A troubling trend in lighting?
23:29
Interesting Experiments With Fluorescent Tubes
22:19
The Weird World in RGB
17:44
Cómo Funcionan los LED - Descubre los Misterios de Cómo Funcionan los LED
18:31
The LED Traffic Light and the Danger of "But Sometimes!"
33:33
Longer-lasting light bulbs: it was complicated
21:27