Step 1: Tools and Materials
- A superbright white LED– these are under a dime at many sites on the web, I think I got a pack of 25 a year or so ago.
- A switch ( optional I did not use this )
- A power supply, there are options here too, I used a 5 volt wall wart left over from a discarded phone
- Fairly heavy copper wire, single strand, mine came from left over house wiring ( romex )
- A power cord, I salvaged mine from an old mouse cable, you can just use the cord on the wall wart if you are using one.
- Current limiting resistor about 200 ohms, you need to do a calculation depending on your power supply
- Electrical tape and or heat shrink tubing
- Soldering Iron
Step 2: Calculate the Series Resistor
Step 3: Wire It Up
While I used a wall wart for power you may want to use batteries, 3 double AA's will do, a nice case for these is at: Battery Holder for Double A, Triple A, C and D cells-batteries. Cheap, Good, Easy . If you want a switch add it, in series, at a convenient point. I did not.
The last 2 pictures here shown here include some work done in the next step.
Step 4: Mount It
The task light can be fastened in place by wraping it around 2 screws or bolts near where you want the light. The wire is then adjusted to light the task. I decided to use a magnetic base: its construction can be found at: Magnetic Lamp and Tool Holder - Using Microwave Salvage Step 6.