Automotive Incandescent bulb replacement
This purpose of the design is to create a bulb replacement that will allow the current draw on the interior light circuit to be reduced so that it could be used for other purposes.
The design uses 2 LEDs, a resistor and two small sections of brass tubing.
A full guide to the construction can be found here.
While the design does work, I am working on modifications that will allow 4 LEDs to be used instead of just two.