●2 years warranty and life time support,2pcs packaged; Replacement part number: 66144 66140 85140 85415 (If there is any problem in the product,please contact us via Account Center,we will reply you within 24 hours) ●Enter trim of your vehicle to confirm the fitment; Important: Those HID bulbs are ONLY for replacement of your stock D1S/DS1 bulb, not for Halogen bulb EVEN IF it shows "Fit" ●All steel alloy bracket seat make it stronger and more durable; The light is same as OEM bulb and is like the sun also make the driver more comfortable ●Produces light up to 3 times than halogen bulb, lumen of HID is up to 3200LM while lumen of halogen lamp is 800LM, and lower watts; Scientific design can reduce the chance of rain leakage and short circuit ●Lightened by tungsten filament, the lifespan of the bulb is five times than the halogen bulb with only more stable light output