ViaVolt Lighting System (1000 Watt HID Hard Core Grow Light MH/HPS System with Wing Reflector) Superior Cooling Capabilities, which extend the longevity of the capacitor and ignitor  Exposed Ballast 2 Switchable Sockets Design eliminates RF interference Ballast will fire both MH and HPS lamps 2-Year warranty on ballast and 1-Year warranty on both bulbs  All ViaVolt light kit ballast are UL and FCC compliant.