Slim one
1).digital ballast: U.S.A. brand ATMEL CPU chips and German technology build-in HID BALLAST 2).Durable design: Waterproof .dustproof and vibration resistance 3).Safety: Insulation and anti-high temperature material. better safety and longer life. 4).Quick start: 80% of objective luminous flux can be reached within 1 second, Objective luminous flux can be reached within 2 seconds