The DIY 9V Mini Flashlight. Grab yourself a couple of 9V battery cells, three LED lamps and a bit of solder and Bob’s your teeny light. Neato.
It’s the same thing every time, no lamp in place when you need one – so why not build a lot of these – always in place ! You need: * 1 fresh 9 Volt battery * 1 old (empty) 9 volt battery * 3 high intensity LED’s (white, 25.000 mcd – 3,8 volt and 20 mA – 35 degrees) * 1 magnet (memory magnet for fridge)