Product guarantee: 100% brand new product 100% original factory production Provide 1 year original factory warranty service The 4300K LEDs included with this product are not the same color as the 4300K Halogen lights. 4300K LEDs are yellowish, 4300K halogens are reddish, they have different color coordinates. If you are looking for the same color as the halogen lamp, please buy the halogen lamp directly. Product information: LED Chip: 7035 Chip Power : 6010W/Pair Operating Voltage : DC 12V Operating Temperature: -40degC ~ +80degC Color Temperature : 4300K/6000K Design: Fanle SystemLifespan: > 50000hrs Heat Diipation Theory : Aviation aluminum 6063 The actual power is 90% of the theoretical power All the LEDs we sell have a temperature adjustment function. As the temperature of the bulb rises, the power will drop to a certain level. This is a normal phenomenon and will help the bulb to prolong its service life. The power provided in the data is laboratory data and does not represent the power after long-term work. Products include: A pair of LED bulbs An English manual FAQ: Do not know the Interface model of your car headlight ? 1, View the instructions of your car headlight. 2, ask the Car manufacturers which you bought your car from for help. About the canbus decoder: After installing the LED bulb, one of the following conditions appears for the headlights. Please don't worry, there is no problem with the light bulb, just your car needs to install an additional decoder: 1. One bulb flickers or one bulb does not light. 2. The dashboard shows the headlight failure. 3. After replacing the H4 headlight bulb, turn on the high beam light, but light the low beam light. Please contact our customer service and we will help About the adapter The lamp holders of some cars are not standard designs, and additional lamp holders are needed to complete the installation of the LED bulbs. If you are not sure whether you need an adapter, please contact our customer service and attach a photo of the lamp holder structure. We will provide aist (H7/H1) About Shipping: Generally , we will ship your order in 1-5 working days. If ship from China , it's about 10-60 days (Most countries only take le than 28 days). If ship from The Ruian Federation , most of areas is about 2-15 days. Some areas is about 15-45 days(Only available on The Ruian Federation). Sometimes due to holidays or force majeure factors, Big promotion (11.11). such as customs strikes ,bad weather, lead to logistics delays. If the delivery date is coming , but you haven't received the item , please cantact us to extend the delivery date. About the brand: Our store opened in 2019 and has accumulated nearly 20,000 followers. We have been committed to providing customers with brighter and more reliable LED bulbs. We always adhere to the busine philosophy of customer first. If you shop in our store, you don't need to worry about warranty iues. We will respond to your request as soon as poible and provide all poible services. At the same time, all our products support wholesale or dropshipping cooperation. If you have this idea, please feel free to contact us.