All the HID Ballasts made in china use CPU programming controller ,the program is easy to copy ,so an engineer could make a CPU ballast in his living-room ,so that rapidly creating many hid makers in China,but a CPU controller can't monitoring the HID lamp (lamp power keep changing all the time ), and the operation flow is not smooth , then it causes many problems, so many customers always say that a HID system which is made in China is no good .and their one year warranty is difficult. but ours is not the one . Our First-rate manufactured digital HID Ballast with an on board ASIC chip is used
BAL-D4