... for your xenon lighting needs.H7 Metal Base Bulb (EK LUXY BULB)All our H7, H3, H4, D series ... Base bulbs (llustrated above) if you need. Bulb features: Bulb model:H1,H3,H4-1,H4-2,H4-3 ... the car computer system, also protect the hid bulb. Some low quality analog ballast start current reaches ... & is able to run more efficiently and ignite the bulb more quickly.(Analog& Simulant - about 30 seconds, Digital ...