SYLVANIA - H11 SilverStar - High Performance Halogen Headlight Bulb, High Beam, Low Beam and Fog Replacement Bulb, Brighter Downroad with Whiter Light (Contains 2 Bulbs)

I just installed these on a 2013 Cadillac CTS and they are brighter and whiter than the OEM (very little night driving on my Mom's car, so really OEM.) I can tell you to install on that car isn't easy because you have to remove part of the bumper but that's hardly the bulbs' fault. Others complained about these bulbs burning out too fast but you have to put it into context. These bulbs are brighter and whiter than the entry level lightbulb because they burn hotter and likely have a different gas mixture inside the bulb than whatever you're used to. There is an inverse relationship for all incandescent bulbs between lifespan and brightness. More life, less bright. More bright, less life. Using these bulbs >will< increase the temperature inside your headlight housing compared to more typical, less bright bulbs. This can be very bad if you frequently drive several hours per night without any cool down, or even if you're in a very hot climate. The hotter the bulb is, the quicker the filament will burn away. So these driving conditions could burn the bulb out before it's rated number of hours but it is actually what's expected. If you have an older car and these driving conditions, it is possible the excessive extra heat generated can cause physical damage to your car's electric or surrounding plastic. It's very unlikely you'll have that problem with any car in normal conditions. Check with a pro if in doubt. If you do a lot of night driving and want bulb longevity over brightness, whiteness and down range illumination then you might try one of the 2 cheaper bulbs made by this company. If you want better night driving performance lights there is 1 bulb above this by this company that does it, but beware those bulbs last for less time than this one. You'll get more runtime hours out of this bulb if you drive less than an hour at a time with lights on and do a 30 minute cool down between multiple trips. It's just the way it is with these bulbs. If you want the best of all worlds and will spend the money, some LED headlight bulbs on the market claim to offer both longevity and superior performance. Personally I find the light frequency of most LED headlights to be a strain on my eyes.

Nice and bright. About same price as store.

Huge improvement over my original ones. Wonderful visibility. Arrived quickly and in perfect condition.

These Bulbs are nice in the night and project about 40' further than the stock ones in my 2008 chev hd

Waited to write the review to see how long they will last. It's been more than 7 months now (including a cold Canadian Winter) and these Sylvania H11 SilverStar High Performance Halogen Headlight Bulbs are still going strong! : ) I really believe anyone who reports that these halogen headlight bulbs don't last is because they're not aware that any oil on any halogen bulb will cause them to burn out prematurely. Yes, this includes oil from your hands! Once the old bulb is removed, I put on a fresh pair of disposable gloves (nitrile or latex) and install the new bulb. If disposable gloves are not available, washing your hands thoroughly and using a clean rag to handle the bulb will work. The trick for these bulbs to last long is to make sure nothing oily touches the glass. I hope this helps.