Home / G10 - Electrical Gak-Gauges/ switches/ Panels/ Wire / TT13-Qty-1. Black power supply red light on/off switch and cord. 4.5″W x 3 1/4″H x 6″ deep.TT13-Qty-1. Black power supply red light on/off switch and cord. 4.5″W x 3 1/4″H x 6″ deep.