Ingenious hybrid lamp sold in a MINDLESS way...
15:38
How bad is 91W gear for an expensive 135W lamp? Testing SOX 135W on 91W, 135W and 135/180W ballast
9:22
Weird battery change in Geiger counter
9:58
Hidden Hazards of Halogen Lamps
17:35
Inside a new Philips ultra-efficient LED lamp (with schematic)
14:25
What element is attracted the most to a magnet?
25:07
15 Genius Home Hacks That Will Instantly Change Your Life
10:27
The cheap Chinese bulb that won't turn off
10:50