Schematic Reference

LED Torch

Nowadays LED are very popular. Some are using LED lights for homes instead of CFL as LED power consumption is really low. Now I am going to introduce you a torch with a single LED bulb which gives 90 times longer service than a normal bulb when you use AA alkaline batteries. Normally general torch bulbs consumes about 1.8 Watts while LED consumes about 25 mW . Can you believe this! But the brightness is same.

The below simple circuit is design for 6 Volts supply if you want to use 9 Volts then simply change the value of the R3 resistor in to 470 Ohms.

To get best results do not use a normal LED which are available in the market use the specific one.