The Smallest and the Brightest Flashlight Ever!
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The Smallest and the Brightest Flashlight Ever!

this is our new helper for camping,mountain climbing,reading and sailing.it's also very cheap and it costs under a dollar.
What Do You Need?

1-1w power led
2-3.7V 350mA li-ion battery
3-li-ion battery charger board(optional)
4-power led lens and holder(5^ or 45^)
5-small on\off switch
Hot Glue the Power Led to the Battery

Hot Glue the Switch

Solder Them All Together

then add the lens and hot glue all the thing together.
You're Done!
now you are done and you can test the flashlight as i tested the battery will last about an hour so it's good for the size of it.