All SHADOW-CASTER® LED boat lighting products, both single and multi-color, will work from a standard switch. In multiple light installations, current demand can add up quickly and exceed the capability of a standard switch, e.g. 2x SCR-24’s on a 12 V system = 16 amps. In these cases consider a SHADOW-CASTER® power distribution module SCM-PD4CH to switch the current for up to 4 lights. This provides not only a convenient way to connect and fuse multiple light installations, but a way to handle the high currents using a normal switch. In either case, simply toggling the power on or off will step the light to the next color.