16 Ga. Four Conductor Duplex Wire, Black, White, Red, Green
Source PVC 2 core speaker wire black & red 0.5mm and 0.75mm2 on m.alibaba.com
Amazon.com: TYUMEN 40FT 18 Gauge 2pin 2 Color Red Black Cable Hookup Electrical Wire LED Strips Extension Wire 12V/24V DC Cable, 18AWG Flexible Wire Extension Cord for LED Ribbon Lamp Tape Lighting :
2 Pin Red Black Wire Cable Led Strip Single Color Extend Cable Line Wire - Electrical Wires - AliExpress
Audiopipe 100' ft 16 Gauge Red Black Stranded 2 Conductor Speaker Wire for Car Home Audio Installation - Walmart.com
50 Foot Each Black and Red Solar Panel Cable 10 AWG 1000 VDC - Global Solar Supply
500 ft. 18/2 Primary Red/Black Paired Speaker Wire SWRB18500 - The Home Depot