Originally Posted by K4s-RRA:
" The downside of this is bright LEDS that may be too bright for your car without any easy way to adjust the light level. In addition, most of the LEDs at 12VDC are not wide angle thus potentially leaving darker areas in the car. I spent the time to create a kit that overcomes these problems."
There are numerous ways to dim LEDs if they are too bright. Simplest way is to use a larger resistor. But they can be series wired also.They can also be wired to a CL2-N3 current regulator. 20 ma can drive 1,2 or more LEDs in parallel. Each LED will become dimmer as each one is added. See also the caboose lighting circuit,in one I installed a pot for dimming.
The LEDs in my post linked previously are warm white and have 140 degree view angles. 6 of these will light a 21 inch car with no dark spots. The light dispersion is better than bulbs as no reflector is needed. These LEDs cost 35 cents each. DYI a car can be done for $3 or less depending on component requirements.
Dale H