So I needed to replace my headlights and I got talked into these lights. So far my opinions is: yes they are pretty good. I am most happy with the price $31.60 (canadian funds) for the pair #9004. I wouldn't be happy with these bulbs if I had paid more. They are quite different than stock, there is no yellow tint in the bulb or on the road. I had intended to go with Nighthawks because I use them on my mustang and am very happy with them. Hopfully they will last because it really wasn't fun to change the drivers side. Yes, you can change it with the battery in but it requires some patience. For those lacking patience and skill I think removing the battery and tray is the faster way.