Strange USB powered aquarium heater with other uses.
21:27
All plastic 150W eBay desk mini-heater. (With schematic.)
13:01
Lithium "capacitor" in a disposable product
20:08
DIY Laser Image Projector (100ft+ Range!)
21:29
What if you just keep zooming in?
21:13
"Miracle" heater teardown - with schematics
16:54
What on Earth Is This Thing?
27:04
Wonder of Manufacturing - Worlds Cheapest Automated Hot Water Central Heating System
14:44