1.Competitive price 2.Used with HID lamp 3.Defective rate:<0.5% 4. ... .3*29.3mm Product Introduction:Integrative single-board structure with dual-core digital technology, refined circuit, constant power, high compatibility, quick dynamic ... , Under-Voltage Protection, Over-Voltage Protection , and Flashing Light Protection.2. Constant power: prolong working life of the lamp, eliminate bulbs ...