****Please note that Lumatek Ballasts come with Female Adapter installed on the lamp outlet. Male Adapter is recommended for easy installation**** Lumatek 250W Metal Halide Electronic Ballast ELECTRONIC REMOTE BALLAST 5 YEAR WARRANTY(3 FULL YEARS + 2 YEARS PRORATED) * More lumens generated per watt of electricity consumed losing fewer watts from power supply to lamp - a power factor of 95%+. High frequency output results in low power loss * Fast start-up reaching full brightness in under one minute * Small, compact design * Produce less heat * Cut-off circuitry for ultimate safety UNIQUE FEATURE! All Lumatek™ ballasts come wired with our standard female lamp cord receptacle that accepts our proprietary, patented male lamp cord, making these units compatible with all Sun System® reflectors. Purchase lamp cord with socket assembly separately.