Our tray cables are great for off-grid solar applications including solar panel and charge controller wiring. A dual conductor cable will keep installations clean and wire management simple. Type TC Control Cable is for use where small diameter, flame resistant cables are desired, such as cable trays, raceways, and outdoor locations. Type TC is also listed for direct burial and for use in Class 1, Division 2 (C1D2) hazardous locations and Class 1 control circuits.