... :the ballast had passed the E-mark approval )and our lamp defect is below 0.3%.the ballast defect rate is ... ballast of our will compatible with all type of HID BULB:3.Bulb type availableSingle bulbH1,H3,H4,H7,H8,H9,H10 ... ,9006,9007,880,881,D1S/R/C,D2S/R/CHigh halogen and low xenon bulbH4/L,9004/L,9007/L,H13 ... /LHigh xenon and low halogen bulbH4/H,9004/H,9007/H,H13/HMoving bulbH4 H ...