After 5 years the rear tail light bulb on my SUV went bad, I picked these up and went to replace them and found out that what my SUV came with from the factory was this exact same bulb.Replacement was a snap (2 screws and I was done).I will be frank.  I'm an avid lover of Amazon and its low prices. These were more expensive here on Amazon but if you want to avoid a trip to the automotive store or you don't have an automotive store these'll come to your door although the automotive store has the database that tells you what vehicle it fits (would be great if amazon had a similar database - hint hint).Bear in mind, these bulbs fit dozens of vehicles but you need to know the part number that you need before you order.  Also, installation difficulty also varies by vehicle.  I'm handy around vehicles and have tools so it was a pinch for me, but if you're not mechanically inclined you might just want to opt for having these replaced at a dealer.It's a five dollar job if you know what you're doing.LED CHOICES:A few things on LED lights out there.  LED lights have come a long way but by and large its hard to find an LED light that does the job these bulbs do although LEDs should last forever.  The other thing about LEDs is that they draw very little power and that can cause some problems in your vehicle.  Example, the way I knew my brake light (blinker light) was broken was that when I turned on the blinker it flashed really fast (flash flash flash flash vs flash pause flash pause flash pause)...because LEDs draw so little power, your car thinks you have a broken flash light so your blinkers could flash fast (alerting you that your blinker light is out)...some of the newer LED lights have a capacitor built in to prevent his behavior but bottom line, its hard to tell what you're getting.  I'll tell you, as soon as I find an LED light that is as bright as these bulbs, doesn't have the issues of fast flashing, and has bright lights - I will most definitely buy them primarily because LEDs should last longer than my car.  The other thing about LEDs is that they're expensive.  Bottom line, if you know what you're doing LEDs are a good option if you go find the right ones.  If you don't know your way around these newest products, go with these regular bulbsPREMIUM BULBS:In my experience they're a waste of money unless you're a car afficionado and are going for a particular look.BRIGHTNESS OF THESE BULBS:Since they were the exact same bulb that came with my car from the factory, the look is exactly the same.  Exactly the same light intensity - no more or less.  Fine by me, it's legal and bright enough.LONGEVITY OF THIS BULB:It took the set that came from the factory 5 years to burn out.  Since they're these same bulbs, I expect another 5 years from these.