Ballast for LT Pulse Start Metal Halide lamp from 70~2000W American standard AC120/208/240/277V, 60HZ Ballast for LT Pulse Start Metal Halide lamp from 70~2000WAmerican standardAC120/208/240/277V, 60HZPicture and specification:......More detailed product information or any other products, welcome to contact us. Ballast for LT Pulse Start Metal Halide lamp from 70~2000W