No cooling fans needed! Comes with latest copper cooling belt design.Instant response， reaches highest output in less than 0.01 second.Efficient Heat Dissipation，Enhance Lighting EfficiencyLow Voltage Protection， High Precision Constant Current Driver ChipBuilt in IC Circuit (Current Regulator)-Prevents LED Damage from Voltage Variations & Spikes60% Less Power ConsumptionEasy Plug and Play InstallationSpecifications:Socket Type: H7Lumens: 2500LM/each bulbLED Chip Brand: CREEPower: 40W/Set (20W/each bulb)LED Quantity: 4pcs (each bulb has 2 LEDs)Voltage: DC12V-24VPower: 20 WCooling Belt Material: CopperColor: Black+WhiteBeam Angel: 360??Light Length: 6.5 cmCable Length: 31 cmLifespan: > 50，000 HoursWaterproof Level: IP67Available Color: 6000KPackage Including:2 X LED Headlight Bulbs2 X LED Drivers1 X English User Manual