The Aquascape Color-Changing Lighting Control Hub is required to run and control Aquascape Color-Changing Lights, allowing you to use the included remote to wirelessly control a wide variety of color options and settings. Each hub can control up to 150-Watts of Aquascape Color-Changing Lights. 12-Volt, weather-proof, quick-connect fittings make installation quick and easy. A 12-Volt transformer is required to power the control hub and connected lights. Use Aquascape Color-Changing and extension cables to connect multiple lights to one control hub. Use multiple hubs to control separate sets of lights simultaneously, further expanding the variety of lighting options.