DIY car control system
To make a DIY car control light, you'll need: an indicator screwdriver, red and green LEDs, a 12-volt A27 battery,
alligator clips, a resistor with a rating of 510 ohms to 1 kilohms, wire, electrical tape, a soldering iron,
and a little time. This video tutorial will help you easily assemble your own control light.
Enjoy!
Please disregard the disclaimers.