Robert, I have a similar combination Steaming/Foredeck Light. The steaming light is required when under power at night. It is not required under sail. Mine has three wires, a common (black), 12 VDC for steaming light (red) and 12 VDC (white) for foredeck light. Your colors may be different, look where the conductors terminate. Originally there were three separate #16 AWG wires which I replaced with a single 3 conductor #18 AWG cable. The 20 watt foredeck and LED steaming light draw under 2 amps.
Regards, Ron Ron Ricci S/V Patriot C&C 37+ Bristol, RI (978) 877-0369 ron.ri...@1968.usna.com _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!