Features: 1.Super bright COB chip， High output LED bulb powered by Cree cob LED chips provide 270 degree total illumination， the flawless beam pattern eliminates dreaded glare in halogen housing with no blind (black) spots 2.LED lights than traditional halogen energy， more power. 3.High purity of luminescence and brightness on instant startup. 4.Complete Kit No Other Ballast/Driver Required Plug and Play Installation. 5.Built in on board anti flicker Canbus CPU provides easy plug and play direct replacement installation 6.Fast cooling， Smart Efficient Cooling System， Built-In Cooling Fans For Fast Heat Dissipation， High quality Aluminum heat dissipation ensures the secure temperature range. Fewer Components damaged， repair the probability is very low， compared with HID ballast repair lower than 80% . 7.Heating temperature is low， protect the car. Xenon working temperature up to 800 -1000 ， the main reason for the car ignition . 8.LED car headlights simple structure， fewer parts than xenon lamps， significantly lower than the xenon lamp failure rates 9.Automotive LED headlamps color temperature balancing. The Xenon bulbs in the same color to clear， about 6000K. 10.High compale and high effective decoder: Specialized decoder error free for all vehicles， error free effectively， anti-interference， no glare， easy and safe connection without any modification for wires. Item Specifications: Bulb Size: H4 Application: Headlight High Beam / Low Beam / Fog Light / Driving Light / Daytime Running Light LED replacement bulbs are engineered for superior performance， exceptional looks， and increased safety. Light color: white Material: Aluminum alloy Bulb size: H4 9003 HB2 Length: 7.5cm Directly: 4.5cm Luminous angle: 360 degrees Lumens: 7000lm / bulb Working voltage: DC 12V ~ 24V High power up to 100W， low power consumption Super bright lighting with CSP LED technology No delay to light up， Faster on/off response time Lifespan: 80，000 working hours， stable quality， long service life Aluminum heat sink design，built-in automotive circuit to prevent electronic interference. The model is the same as factory light， no need to change car wire rute，just Plug and Play， NO modification required Energy saving， environmental protection， Stable performance， through strict test， Use safer driving in the car Installation Guide: 1.As a safety precaution， make sure that the car has had time to cool down properly before starting the installation process. 2.Put the vehicle into park or make sure it is securely in gear. 3.Make sure to have the ignition turned off and the keys removed. 4.Be careful to avoid burns， especially when turning on or off the vehicles lighting. 5.Be careful to avoid crushing or cutting the bulbs. Also make sure to not touch the bulbs with your fingers， as this will cause blotting. 6.Fully examine the connection of the contact points， ports and the wires as faulty connections can cause lighting problems. 7.Make certain that the end of the bulb does not come in contact with the interior light shield of the headlight when adjusting the bulb. Package include 2 X H4 LED Bulbs Note : 1.These bulbs will work with most vehicle's computer system without error.If you are not sure whether it works， please contact us before purchase. 2. If your H4 bulb uses an adapter ring (or Retainer) behind the bulb for lock in into the lamp's socket， this H4 LED bulb will not work without a right "LED H4 retainer" for your vehicle. 3. Before ordering， please check if your H4 factory bulb has a retainer attached. If there is a retainer on the factory H4 bulb， you will need to replace the retainer with a H4LED retainer for your vehicle. The LED retainer varies from different vehicles， please make sure you have or going to get it before you purchase this LED headlight bulbs.