... work quiet Product Name 400W HID dimmer Electronic ballast for Garden lightOur Advantages:1, Timing Dimmer ballast, High Power Factor, Low THD2, ... ~ + 122 Fahrenheit3, Wide operating voltage range: 90V-150V / 160V-260V4, Energy-saving up to 15%-45%5, Open circuit protection, short ... 731- 85505477Email: christine [at] intelligon.cnContact: Christine 400W HID dimmer Electronic ballast for Garden light