How to Make LED Headlight for Bicycle Using a Bottle.

by sureshmali in Circuits > LEDs

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How to Make LED Headlight for Bicycle Using a Bottle.

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There was need for a headlight for my Bicycle and could not find one in stores, so I decided to build one myself.

Materials Required.

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2Ltr Empty Pepsi/Coke Bottle -1pc
1W LED Light -1pc
Torch Reflector -1pc
Resistor 220K/1W or .5W -1pc
Toggle Switch(any switch will do) - 1pc
Screws - as required.
Some wire, Paper cutter, scissors, Insulation Tape, Soldering Iron(if you don't have one you get it soldered from a friend or a mechanic.

Cutting the Bottle

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Cut the upper part of the bottle  as shown in the picture.

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Once the bottle is cut make a hole, this will hold our toggle switch.

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Screw up the toggle switch as shown.

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Fit the LED into the reflector. Also solder the 220k resistor.

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Connect the wires as shown in the circuit diagram.

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Once done, insert the reflector into the bottle.

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Now tape it firmly using the the insulation tape.

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Now it should look something like this.

In case you don't have a battery pack. You can use 4AA sized batteries jut remove the resistor and connect the batteries directly.