... with 8 years's experience 4.Stable performance,low maintenance High quality HID light ballast1.Specifications ... ×78×37mmWeightAbout 0.48KG/PieceWarranty18Months2.Performance: Each HID ballast is individually tested.1) Waterproof : ... )Excellent performance of the thermal stablity.Normal working long time under high temperature(105°C ... , H3, H4, H4(H/L), H4 with halogen lamp, H6, H7, H8, H9, H10, H11, H13 ...