Your BMW came from the factory with halos, but you want a cleaner brighter light. You also want that cool white look instead of the boring old yellowish look. You've come to the right place! 20W 6000K CREE BMW E90 / E91 Factory Halo Upgrade Kits by Oracle Lighting install quick and easily to give you a brighter, cool white light. Each module contains two 5 watt CREE LEDS (20 watts total) to power all 4 of your existing halo rings. The bulbs will not cause any OBC/Canbus/Computer bulb errors to occur.