... computer system, also protect the hid bulb. Some low quality analog ballast start current reaches 9A, 10A, 12A ... which hurt the ... IC chip What is the difference between Digital ballast and Analog ballast ? Why is digital ballast much better ?The difference between ... to run more efficiently and ignite the bulb more quickly.(Analog& Simulant - about 30 seconds, Digital - about 5 seconds) Besides, the ...