... High output, high luminescence efficiency.· Fit for all standard 400 watts HPS grow light systems· Fit for the Heliophile, such ... year· Safety Certifications: UL, CE, RoHS· High power 400 watts· Convertable for HPS and MH lamps· Low power consumption· ... to decrease output and intensity whenever necessary. · Rated Power: 400 watts· Specified Frequency: 50/60Hz· Working Voltage Range: 110V/220V ...