Since i've had several requests to explain this, i'll write up an easy "how to" for wiring Led's. This will just be how to run power to get them lit.
Not how to run them in parallel for specific voltages.
(if someone wants to add that part to the how to, feel free to do so. just please use pics for every step. make it as easy as possible! )
The model i'm doing, i'm using a 3 Volt power supply. Obviously automotive applications have 12 Volt. This is why most leds are sold with resistors. you need to solder that resistor to either of the led terminals and that makes it work on a 12 Volt power, in series.
Step One.
In the picture, i have what is called a "terminal block" it has 4 terminals, 2 screws on each one.
1|2|3|4
5|6|7|8
The metal piece in the back left is connecting screws 1 and 2. This gives them both the same voltage. So as pictured, screws 1;2;5;6 will all have the same voltage. As with 3;4 and 7;8. This is NOT true for screws 4;7 or 3;8. They are not connected, so they will not have the same voltage.
I have connected the + lead of the led onto screw 6 and the negative of the Led onto screw 7
Threaded Mode