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Our two light dwarf signal comes with yellow over red LEDs installed. Instructions included.
This unit is equipped with LED Solid State Lamps. Take caution to use the proper resistor with each wire. If you have a 12V DC power supply, you can use 1/2-watt resistors. If your DC voltage is different, use the formula provided. The white wire is the common positive wire for all colors. 300 ohm resistors are included.