Features:1 True Plug-N-Play Conversion Kit2 Safe for headlight and fog light, won't melt the housing and runs cooler than stock Halogen bulbs3 Brighter driving vision at night (improves visibility by 300%)4 3X brighter than Halogen bulbs5 Fits into existing headlights or fog lights, no modification or retrofitting required6 Nice color output7 35W power consumption compared to 55W Halogen bulbs8 Bulb lifespan of 3 to 5 years9 Ballasts have shut off mode to prevent a fire or damages if a glitch occurs10 Ballasts and bulbs are water resistant and shockproof11 Waterproof connectors and grommetsParameter:1)Input voltage range: 9 - 18V2)Output power: 35W/55W3)Working temperature: -40-105C.4)Rated voltage: 13.5V5)Max. Start voltage: 23kV6)Input current: 3.2A7)Instant ignition voltage: 23000V~25000V8)Ballast lifespan: 3000 hours9)Anti-electromagnetism disturb: Reach S95/54/EC standard10)output voltage frequency: 250Hz11)Switch time: > 100000times12)Open circuit protection: Automatic protection in 1s13)Short circuit protection: Automatic protection in 3s14)Protection functions: Low voltage protection, high voltage protectio