Features high frequency 105 kHz micro processing technology optimized for running double-ended lamps. This Galaxy® DE Gen 2 Select-A-Watt® ballast can operate a 1000 watt DE lamp at 600, 750, 825 and 1000 watts as well as Turbo Charge®. 600, 750, and 1000 watt lamps are also properly operated with this Galaxy® DE Gen 2 ballast. Set the desired wattage on the Select-A-Watt® dial and be sure to install a lamp that does not exceed your wattage setting. Very quiet operation and limited vibration. This ballast has been thermally optimized to operate with a passively cooled (non-fan) aluminum housing. Galaxy® DE Gen 2 ballast lamp cord receptacle is designed specifically for Sun System® brand reflectors. Includes a 6.5 ft Convertible Smart Volt® dual Ferrite, 120-240 V power cord and both 120 volt and 240 volts plugs. Industry-leading compliance with both FCC Article 18 Part A (governs commercial use) and FCC Article 18 Part B (governs residential use) as tested by independent US testing lab in a true as used configuration.