An Adjustable Output Wattage from 30 watt to 50 watts for fine Control of Output Intensity. Ballasts are 100% digitally controlled, which allows Extremely High Efficiency, Low Starting Current, and Precise Operation. This all means Super Reliability, and 100% flawless plug and play operation on all cars, trucks, and other vehicles with the Flexibility of Controlling Output Intensity on the fly! Ballasts Ballasts are Waterproof, Dustproof, and Shakeproof and feature Instant Hot Re-Strike technology to protect already warm bulbs from excessive damage when restarting. Bulbs Bulbs featured in these kits are the best among all kit manufacturers, with the least variance available on the market, all within +/- 100 lm (brightness) and +/- 200K CCT (color). Average lifespan rating is 3500 hrs*, compare to others of significantly less! Focal points on these bulbs are the best we have ever seen in any other kit, resulting in some of tightest and most uniform beam patterns to come from converted lamps. The resulting beam pattern is UNMATCHED by any other kit we have EVER tested! Brightness Levels Each kit includes: 2X DIGITAL Waterproof ADJUSTABLE Ballasts 2X High Wattage HID bulbs Mounting Hardware 1X Output Control Module (In car controller) Specifications: New Adjustable kit (30W-50W) Input Voltage Range: 8V-18V DC Operating Voltage: 13.2V DC Input Current:<4.5A DC Input Watt: 30-50W (Variable) +- 0.5W Output Frequency: 380Hz -400Hz Operating Temperature: -40?~ +105? Efficiency: >85% with Input 13.2V DC Condition Protection Output Open/Short protection: shutdown in 1.5 second Waterproof High temperature working test (lasting 4 hours) Cold temperature working test (lasting 4 hours) Dimmer press frequency test (over 10 thousand times test) HID XENON KITS ARE BENCH TESTED BEFORE DISPATCH