Dear Buyer, before ordering please notice that some models with 3 side LED Bulbs, some are 2 side LED Bulbs. Here are details. Socket Models Sizes: High / Low beam: H4 H13 9007 With 3 Sides COB LED Bulbs. Single Beam: H1 H3 H11 H7 9005 HB3 9006 HB4 With 2Sides COB LED Bulbs. Notice: H8 H11 Are The Same Models. Notice: Different models (H1 H4 H3 H7 .....) has different plug. Please check pictures carefully when you ordering. This price include 2 PCS LED headlights. S2 LED headlight Wattage: 72W/Pair , 36W/Bulb Hight luminous efficacy Flux:8000LM/Pair 4000LM/Bulb Waterproof: IP68. Voltage:9V to 36V.Wide-range voltage,constant urrent control,anti-interference circuit design. Apprication:Upgrade for Car,Trunk,SUV,RV HID Xenon Headlight,ALL IN ONE Style, no extra driver needed . Beam Angle: 360 Long range:6500K color temperature and 200m light range. What is color temperature? Color temperature is a way to describe the light appearance provided by a light bulb (lamp). It is measured in degrees of Kelvin (K) on a scale from 1,000K to 10,000K. What are Lumens? Lumens measure how much light you are getting from a bulb. The more lumens, the brighter your light will be. When youre looking for new lightbulbs. Designed in All in one heat conduction, help to blow heat away continuous, However other seller led lamps design in separately heat conduction which could not blow heat away well, so it would be much more hot when it working. Real shot in outside road with our car LED headlights. High Low Beam Lighting Effect. Comparison between LED bulbs holagen bulbs in terms of brightness, lifetime, start time and power. Led lights would be much brighter, longer lifespan, fast start and more powerful. As we all know, many low quality led lights exist the problem of lumen depreciation. Socket Models Sizes: High / Low beam: H4 H13 9007 With 3 Sides COB LED Bulbs. Single Beam: H1 H3 H11 H7 9005 HB3 9006 HB4 With 2Sides COB LED Bulbs. Notice: H8 H11 Are The Same Models. Product problem you may meet Your parcel will be sent very quickly after you make the order. If there is any problem about this prdouct with us before dispute. We will try our best to solve problems. 1. Package problem. The items packaged in box. It is not very strong box, but safe enough to protect products. The lights protected well in bubble, so you will not receive broken items. We hope your understanding, if outside box deform. 2. Delivery time. Normally your parcel can be sent out in 24 hours except on weekend. We will choose best