Free Powerful LED Flashlight
by Undead_Engineering in Circuits > LEDs
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Free Powerful LED Flashlight
This rechargeable flashlight was built using free material. It is very powerful it uses 23 LEDs and 2 lithium ion used laptop batteries.
Parts needed
Solder board
high power LEDs
Pop bottle
Paper mâché
Switch
Wires (i used 22 gauge)
Aluminum foil
2 lithium ion used laptop batteries
Parts needed
Solder board
high power LEDs
Pop bottle
Paper mâché
Switch
Wires (i used 22 gauge)
Aluminum foil
2 lithium ion used laptop batteries
Building It
Start by soldering all the LEDs on the small board.
I cut the top off the bottle to focus the light. I taped aluminum foil to the outside of the pop bottle to focus the light. I Secured the board in the pop bottle by poking holes and threading wires through them and twisting them together on the outside.
I cut some thin cardboard and taped it around the batteries. I then paper mâchéd this box. I cut a hole for the switch. I then paper mached the bottle cap. I stuck it in the housing.
I then screwed the pop top into the housing. I put the wires through a hole I made in the pop bottle.
I cut the top off the bottle to focus the light. I taped aluminum foil to the outside of the pop bottle to focus the light. I Secured the board in the pop bottle by poking holes and threading wires through them and twisting them together on the outside.
I cut some thin cardboard and taped it around the batteries. I then paper mâchéd this box. I cut a hole for the switch. I then paper mached the bottle cap. I stuck it in the housing.
I then screwed the pop top into the housing. I put the wires through a hole I made in the pop bottle.
Wiring
I soldered the LEDs, switch and 2 batteries together. The batteries were connected in parallel. I soldered the wire before the switch and left it exposed, I covered all other wire joints with shrink tubing.
Using the Flashlight
The light is very powerful and lights up an entire room.
Charging
It is easy to connect alligator clips to the + and -. You can check the voltage of the batteries and charge them without opening up the flashlight.