LED Flashlight

thingiverse

This flashlight I've been using for about three months now has been giving me great results, although it was a bit of a challenge to install its components. The concept behind this project came from Instructables, where you can find the original tutorial at http://www.instructables.com/id/LED-Torch-2 - I simply substituted some components with what I had on hand. The electronic parts I used include: 1. An 8 mm straw hat LED 2. A 6.8Ohm resistor with a tolerance of 5% 3. A diode IN 4007 4. A push button switch available at http://www.ebay.com/itm/10x-Red-Push-Button-Switch-6-Pins-Latching-DPDT-Tact-Tactile-Self-locking-DPDT-/380810457498 5. A DC power jack as shown in the image at http://www.p-wholesale.com/upimg/5/121a2/dc-power-jack-570.jpg 6. A 4V, 1200mA battery 7. Two 3mm allen socket bolts, each 10mm long 8. Two 3mm hex screw nuts I've also attached a new diagram for your reference - this flashlight can stay lit for more than eight hours on a single charge, which takes about an hour and a half using a 5V, 1A adapter.