Japan ONEX 1pc 55w HID Heavy Duty Xenon Ballast for H1 H3 H4 H7 H10 H11 H13 Universal Fit Make sure purchase this item from JDMBESTBOY for genuine products. Other sellers may selling a replica item from this listing. If you see the sticker on the ballast different with the picture, please report to AMAZON for replica item and get a full refund. 1-Year manufacturer's warranty guarantee's your product will stick around for the long run Voltage: 85V +/- 17V ; Input Voltage: 9V-16V ; Working current (Steady state): 3.2 A nom Ignition voltage: 23kV Peak Max, 18kV Peak Min ; Lamp Frequency: 450 Hz Size: 3.5" (L) x 3" (W) x 1.25" (H) ; Waterproof and dustproof; Resistant to heat and shock