roadsun 2Pcs Headlight D1S D2S D3S D4S Xenon HID Car Bulbs 35W D1 D2 D3 D4 Headlamp 3000K 4300K 6000K 8000K 12000K Auto Lamp 12V Bulb Type: D1S/D2S/D3S/D4S Light Source: HID Xenon Wattage: 35W Voltage: 12V Waterproof Rating: IP68 Connector Type: Plug-N-Play Lifespan: Up to 3,200 Hours Operating Temperature: -40C to 105C Color Temperature: 3000K (Golden Yellow), 4300K (Warm White), 5000K (Warm White), 6000K (White), 8000K (Ice Blue), 10000K (Blue), 12000K (Dark Blue) Special Features: Long lifespan, high quality, super bright Applications: Upgrade for car, truck, SUV Note: 1. Please confirm the bulb type compatible with your vehicle before ordering. 2. If the bulbs flicker or turn off immediately after installation, this is not a bulb issue. Check the ballast and electrical current. These bulbs require a 35W AC ballast and at least 30A current. In some cases, a relay harness and fuse upgrade may be necessary to ensure proper power supply.