ROBERTSON 3P10015 CMH0250H04932 mHID Ballast Kit, Metal Halide, 250 Watt (M58), 120/208/240/277Vac., 60Hz, CWA, Quad Tap, HPF (Item sold now as Robertson 3P10065 CMH0250H04932 M) Equivalent to: PHILIPS ADVANCE 71A5770, OSRAM SYLVANIA M250/Multi-Kit Equivalent to: FULHAM HHMHMLT4250D, KEYSTONE MH-250A-Q-CA Two Year Factory Warranty-ONLY if the Amazon Seller is ROBERTSON Worldwide. Take advantage of ROBERTSON's 60 years of electronic design and quality manufacturing experience