OOK 50 ft. 10 lb. 18-Gauge Aluminum Hobby Wire 50176 - The Home Depot
18 GAUGE WIRE RED BLACK POWER GROUND 50 FT EACH PRIMARY STRANDED COPPER CLAD - Walmart.com
18 Gauge Electrical Wire 2 Conductor, 65.6ft Insulated Stranded Low Voltage LED Cable, 18AWG Red & Black Tinned Copper Hookup Wire, 2pin Flexible Extension Power Cord for Auto, 12/24 Volt Lighting - Amazon.com