LED Flashlight

thingiverse

This flashlight I have been using about 3 months ago, I was quite happy with the result although a little difficult to install components. The idea comes from here: http://www.instructables.com/id/LED-Torch-2, there are some components that I replace it with what I have. Electronic components that I use is: 1. 8 mm straw hat LED 2. 6.8Ohm Resistor 5% 3. Diode IN 4007 4. Push Button Switch(http://www.ebay.com/itm/10x-Red-Push-Button-Switch-6-Pins-Latching-DPDT-Tact-Tactile-Self-locking-DPDT-/380810457498) 5.DC power jack (http://www.p-wholesale.com/upimg/5/121a2/dc-power-jack-570.jpg) 6. Battery 4V 1200mA 7. 3mm allen socket bolt with 10mm long, 2 pieces. 8. 3mm hex screw nut, 2 pieces. I also attach a new diagram, this flashlight can light up more than 8 hours. Charging the battery using an adapter 5V 1A for 1.5 hours.