Not a difficult project. I like how he used Lexan as the structure and as an insulator. The LEDs get souldered together in a chain. Negative to Positive to Negative and so on. There are two kinds of LEDs now. The newer type take a higher voltage and get a lot brighter. I buy them on Ebay for about $10/100. The older type are availible most any where, but are very dim compared to the new Germainium type. This is one product that the Chinese make with pretty good quality. They are availible in a couple of colors, but what you want are the white bullets with a clear lens. The bright LEDS can run without resistance just fine, but the older silicon LEDS acan nto run on 12v for very long and will need resisters to drop the voltage. You can get the resistors that you need from Radio Shack or on line. I am not sure that 150 ohm and 16 ohm are the best values, but resistors are cheap and you can try differnt values. The resistor would go in line between the supply voltage and the LEDs.

When you turn on your lights that wire from the light switch will apply power to the LEDs. Use the 150 ohm resistor with the supply line for the lights. The LEDS will light up, but will be much dimmer than with out the LED.

When you step on the brakes, the brake light switch will apply power to the LEDs. Use the 16 ohm resistor on this line and the LEDs will receive almost 12 volts and will light up brightly. If your running lights are one, the LEDS will still get brighter as the line from the brake light will add additional voltage to the LEDS

Solder then together in rows (ie five rows or so) and then attach the rows together. You will have five wires attached to one wire on each side of the array of LEDS. Attach one of the wires to negative and the other wire to positive and the LEDS will light up. On your tail lights ground will be chassis ground and positive will be your light control line. There are four control lines. Running lights, brake, left turn and right turn. Brake lights and running lights are the only one that are shared.


Now if I have not totally confused you, go buy some LEDS and resistors and build some LED assemblies.