Water-proof Ray wu pigtails connector are accessible from Ray Wu, but they can also be purchased from US-based resellers. Dumb string controllers (MR16, DSC, and various 3rd party controllers) generate power that is passed to LEDs with inline-resistance. A 3-channel controller will pass a common 12V+ line to a string of LEDs, and ALSO pass ground line to a series of Red LEDs, a separate ground line to series of Green LEDs, and a final ground line to a series of Blue LEDs. Using the current 4-core pigtail's wire colors as a starting point for a proposed wiring scheme, the scheme uses black for 12V+, red(brown?) wire for Red lights, green wire for Green lights, and blue wire for Blue lights.

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