●Application:With an H7 LED upgrade, the body of the bulb is larger due to the need for heat dispensation. These adapters accommodate a thicker base which allows for better fitment of the bulb with the retaining ring. ●Fitment: 1999-2006 E46 3 Series 325i 325ci 330i 330ci led haedlight bulb clip ●Used for H7 Halogen upgrade to LED bulbs installation ●Allow you to place the aftermarket H7 LED bulb firmly, quickly on E46 3 Series original headlamp housing without destroying the original socket,Please check your Cars model before purchase.If you are unsure whether this product is compatible with your BMW E46 3 Series, just pop up the hood and compare this product with the stock headlamp socket.