LED tester and comparison device
26:58
Simplest solar light possible, using old phone battery.
30:00
Using salvaged lithium cells to power LEDs directly. (with protection test)
18:42
Testing the world's biggest LED
18:32
Russian Nuclear Corporation molecular disruptor
16:05
Chinese automatic house ignitor. (also available in pink)
5:29
Ne jetez pas cette vieille ampoule LED ! Cela pourrait beaucoup vous aider
17:02
Crushing and hacking LED lamps
17:00