How do I wire and power a simple LED circuit? Answered
I'm trying to create a sign with letters made of 40 10mm LED bulbs. They come pre-wired with individual resistors and only say they require 9v-12v at 20mA.
Here is a link: http://www.ebay.com/itm/10pcs-10mm-White-Diffused-Round-Pre-Wired-LEDs-Light-9V-12v-USA-/111795082716?
I would like to wire them in a parallel circuit. I'm also trying to power a single red LED of the same variety, but have read that because the draw can be different I shouldn't wire it to be the 41st bulb in the parallel circuit. It too comes with its own resistor:
I'd like to be able to power these 41 bulbs with a single power source, and integrate a rocker switch to turn the fixture on and off, will I need to a specific switch for this? How should I wire the LEDs? Can I connect the series straight to a 12v power source because each bulb has a resistor?