Features: Premium ABS tail light bulb socket ensures secure electrical connection for W210 R170 X251 models, featuring suitable design (A1408260182) with 21W power capacity and corrosion resistant durability. small 33.8x25.5mm housing integrates heat resistant plastic construction and tool free installation, supporting fog/taillight bulbs up to 10A current for enhanced nighttime visibility. Ideal for owners maintaining W210, R170, W164, or X251 vehicles requiring reliable lighting system upgrades without dealership level complexity. Essential for urban commutes, highway drives, or foggy conditions, this double pack socket maintains best contact stability across temperature fluctuations ( 30°C to 80°C). Rigorously tested through 800 hour perseverance cycles, these white sockets outperform standard alternatives with reinforced polymer structure to prevent oxidation induced bulb failures. Specifications: Material: Plastic Part number: 1408260182 A1408260182 Height: about 2.55cm/1inch Upper diameter: about 3.38cm/1.33inch Package Includes: 2xLamp Socket Or 4xLamp Socket note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.