Specifications: -Bulb Type: H7 -Power: 55W -Lumens:3200-4200LM -Hid Ballast type:Ultra-slim ballast DC -Input Voltage:12V. -Input start current: 3.5A. MAX 4.8A -Output Power:55W. -Output Frequency:250±10%HZ. -Output Voltage:85V. -Instant Startup Voltage:≥23KV DC. -Working Efficiency:>95%. -Working Temperature:-40~105 degree. -Output Short Circuit Protection:Automatically stop working within 2s which open circuit. -Output Open Circuit Protection:Start-up continuously, power supply works constantly. -Quick Start:60% luminous flux within 1s,80% within 4s,100% within 1s. -warranty:18months. -Waterproof and shakeproof:Industrial-grade waterproof and shockproof -Color temperature(as the photo showed): -3000K-Golden Yellow -4300K-Warm White -5000K-White -6000K-Cool White -8000K-Light Blue -10000K-Blue -12000K-Deep Blue -15000K-Violet&Blue Features: -Specially-designed xenon lamps adopt high-tech material -It features low power consumption and long service life -Waterproof and dustproof HID meets the high standards of product quality -Compact modular design for easy installation: only insert HID bulb into the original lamb hole, stick to the ballast and connect it to the power supply -The combination of more light output and wide beam will potentially enhance your safety during driving -HID lamps with good color temperature will improve the performance of a car -Xenon lamps are characterized by enhanced durability and shock resistance -This xenon lamps with 55W power will bring you the unprecedented comfort and safe driving at night -It is not lightened by the high-voltage electrical stimulation instead of tungsten filament, which would prolong the lifespan of the lamp Strict eight items testing of bullbat HID capacity: -High/low temperature testing -IEC 68-2-6 tremor testing -EN60529 waterproof and dustproof testing -DIN antisepsis testing -Instant high/low voltage testing -1000 times/one minute open circuit testing -EMC CISPK22 guard against hertzian waves Package included: -2 x 55W HID Xenon Bulbs -2 X Ballasts All necessary wires and install accessories Attention: -Please be noted that it can’t be used with Canbus Car(For Example: Germany Car model). -If you want to buy canbus hid kit h4 hi/lo, h13 hi/lo, 9004/7 hi/lo, please tell us. -please make sure which bulb type fit your car, before you place an order.