DAWNKNIGHT K4L H7 H4 Led 24v Truck Bulbs 4300K 6000K H1 H3 H11 Led Headlight Lamp 12v 24v Led Lights For Truck 2PCS Product advantages: K4L is a stable 24V special light bulb for trucks. We have sold a lot in China, and truck drivers are very satisfied with this light bulb. It has a unique 4300K color, can see more clearly on the asphalt road, and effectively reduce eye fatigue. The LEDs purchased in our store can get a 1-year warranty service with the identification code on the driver. If your bulb fails, you can contact our customer service staff for help. We recommend that you install the bulb through profeional services, and keep the replaced bulb as a spare (provided that the replaced bulb can work normally). LED Chip: CSP CHIPS Chip Power : 80W/Pair Operating Voltage : DC 12V/24V Operating Temperature: -40degC ~ +80degC Color Temperature : 4300K/6000K Design: All In One Design With Cooling Fan SystemLifespan: > 50000hrs Heat Diipation Theory : Aviation aluminum 6063 The actual power is 90% of the theoretical power Car Suitable Models: 90% of models on the market Note: 1. The light bulb does not have a CANBUS device, so if your truck has a light bulb detection system (the lamp power is insufficient, an error meage will appear), please do not buy this LED. If there is an error meage after installation, you need to return the product to get a refund. 2. If the H4 bulbs are in the following situations, when the low beams are turned on, the high beams on one side are turned on uncontrollably, it means that your vehicle needs an additional 24V decoder to install the LED bulbs. Please contact our customer service staff for help. K4L LED BULB 24V SUITABLE FOR TRUCKS COOLING SYSTEM LOW BEAM/HIGH BEAM PRODUCT SIZE