This circuit, when put into the proper housing will turn itself into a general-purpose hand-held flashlight. Because of its small size and light weight (it use only 1 AA battery), this flashlight is still bright and handy enough for day to day application.

Technical specifications:
- Power supply : 1 AA battery (not included).
- Power consumption : 200mA.
- Display : 6 white LEDs.
- There is ON-OFF switch.
- IC board dimension : 2.41 in x 0.68 in.