Specification: Plug Type: H4/9003, high low dual beam LED Type: CSP 1860 Efficacy(2/pcs): 52W LED Quantity: 24pcs (twin light) Raw Lumen(2/pcs): 10000 LM Current Draw: 2.1A Operating Voltage: 9-12V Colour: Cool White Color Temperature : 6500K Adjustable Color: No Material: Aviation 6063 Aluminum Heat dissipation mode: Fan Dissipation LED Lifetime: Over 5,0000 hours Waterproof: IP68 Ambient Operating Temperature: -40-150 Celsius Dgree LED DOUBLE-SIDED CHIP F2 series led light bulbs with double-sideds led chips, 360-degree clear beam no blind zone. Lumen Flux: 10000lm/set(5000lm/bulb), cool white light reflect road paint/signs better to show clearer road situation. BETTER LIGHT OUTPUT Engineering beam pattern design throw light on road evenly at appropriate angle without foggy light. Soft white light in solid beam pattern, will not dazzle on-coming traffic. INTELLIGENT SYSTEM Built-in constant current CPU, instant full brightness without start-up relay. STRONG HEAT DISSIPATION All-in-one aviation 6063 aluminum profile as heat conduction system,360-degree heat radiating;High speed mute fan(12000R/Min), high air flows for faster cooling rate, ensures maximum heat dissipation and prolongs lifespan of LED bulbs over 50000hrs. Package Included: 2 x H4 LED Car headlights 1 x English installation manual