Simplest solar light possible, using old phone battery.
30:00
Using salvaged lithium cells to power LEDs directly. (with protection test)
37:02
Making cheap solar garden lights more interesting. (Laid back video.)
24:52
Solar powered meteor light project.
12:14
Milyonlarca insan bu bilgiyi bilmiyor! 3'ü 1 arada atık yağ ısıtıcısı! 2024 kışı için sıcak
17:57
Gearless Magnet Bike
6:08
Taser Ring ! DIY Electric 400kv High Voltage Generator (lighter)
21:44
LED Circuit Design - How to design LED circuits
28:29