... most safe driving. 2: The Digital PCB board can control the current, power watt more accurately. For example, our ... , Digital - about 5 seconds) Besides, the digital ballast can control the current ± 1V, but analog only can do ± 5V ... , if the passing rate is 93%, then th quality control production is very good. After do each testing, we ... : Super brightness: four-time brightness than normal halogen lamp