Review on Philips VisionPlus Upgraded Headlight Vision by James Edwards

They are equal or not quite as bright as Sylvania Superstars. Please note that these bulbs burn brighter and hotter than factory bulbs. As a result, the lifespan of these lamps is significantly reduced as the heat generated by high power lamps shortens their lifespan. This is a compromise. Also note that if your vehicle uses these bulbs as daytime running lights, their lifespan will also be short. So if you don't mind swapping out your bulbs more frequently for a brighter, clearer light, then these are fine, as are the Sylvania Superstars and their GE equivalents. Tip: Wear clean rubber gloves when changing the lamp. Oils from your skin getting on the bulb will also shorten its lifespan. The rest of the lamps are of good quality, I am very satisfied.