S7 Car LED Headlight Bulbs H1 H3 H27 H7 H11 HB3 HB5 880 9005/HB3 9006/HB4 H4 HB1 12V 55W 6000K 12000LM/Pair Lamp Auto Bulb Light Material: Aluminum Alloy Cooling Belt Material: Copper Lumens:12000LM/pair Wattage:55W Feature: 1.best OEM size specification to replacement for OEM halogen bulb and Xenon lights kit. 2. Imported best COB,brighter and longer life than normal COB. 3. Copper Belt cooling better than Fan cooling.The light belt can be pull widen and bend for better heat dissipation. 4. Save space without worrying about installation issues.Easy to install-just plug and play. Note : H27 880=H27 881, H8=H9=H11, 9006=HB4 , H4=HB3 Unique design provides improved road visibility for distance and width without loss of led light,see better, drive more and worry less. + 260% morelighton the road 55w upgrade led headlight kit. The most importance of the being cool S7 intelligent constant cooling systew(SICCS) S7 led bulb converson kit feature red-copper themal Technology @ a double ball bearing cooling fan and exclusive ic led headlighting driver to keep the circuit board and led chips constant cool and maximize life.lifespan more than 50000hrs. PRODUCT SPECS EXCLUSIVE ADJUSTABLE-BEAM TECHNOLOGY CERTIFICATIONS:CE,ROHS,ISO/TS16949-2009 KIT INCLUDES:2BULBS,2 LED DRIVER BOX,1 MANUAL. LED:OEM LUMILEDS LEDS CERTIFICATION:IP65 WATERPROOF ROHS COLOR:CRYSTAL CLEAR 6000K BRIGHT WHITE WOLTAGE:9-30V PLUG-N-PLUG:YES BEFORE ORDERING PLEASE HELP US REDUCE MISTARED Pls do not judge the quality of our products at your first thought once you find the bulbs is not lighting,flickering or different color temp.instead,we suggest you to check if the installation is correct whether the positive and negative polarity has been reversed? Whether the cocket is inserted tightly and placed? Whether the wire has opened circuit or loosed contacts? Besides,you can swap the ballast or bulb fram left to right,check whether it works at the other side? If you are not so familiar with the installation of LED kit,we strongly advise you to install it at the repair shop by the professional mechanics,who can avoid damaging your car during installation.we are always in your service.