Gallery : Tube Fender LEDs

OVERVIEW :
Need your Overkill Engineering Tube Fender LED to function both as a marker light and a blinker? Here is a simple LED modification that allows the 2-Wire LED module to operate as both turn and marker lights so you can comply with the law.

PARTS :

  • Two 2.2kΩ Resistors
  • Four 75mA Diodes
  • Soldering Iron, Flux, Solder etc.
  • Heat Shrink tube
  • A few feet of 18G wire

THEORY :
First lets identify our components. And I'm gonna keep it simple.

This project assumes you are using an LED light module made for 12V.
The resister is the one with the four lines on it (red red red gold). Those four lines identify it's resistance and tolerance.
This particular diode's cathode, or (-) post, is denoted by a black band at one end.
By connecting a resistor in series from headlight V+ source to the (+) of your LED and then (-) of your LED to ground, you limit the Voltage across the LED. So, in accordance with Ohm's Law... ahem... the light is well, dim.
The purpose of the diode is to isolate the voltage sources, preventing back flow of current.
So when you turn on the headlights you have a dim LED and when you activate your turn signal you have a bright LED.

In my example, I used blue for headlights, yellow for turn signal and red for the (+) lead to your LED.

PROCESS :
Begin by tinning the ends of your patch wires. Next trim and solder one 2.2kΩ Resistor to the wire you've chosen to connect to your marker light source. Then solder the anode of one diode to the other side of that resistor, and the anode of another diode to the wire you will patch into the turn signal source. Solder the cathodes of both diodes together with either the (+) lead of your LED, or a wire you'll use to connect there. Heat shrink and your done. Just connect those leads where they belong and you're good to go.

If you have any questions feel free to ask!

~Andon Sawyer

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