If you are going for a good quality lamp i would pay that little bit more and buy the Megaman lamp they are best on the market. There is a lot of cheaper Chinese versions and they not as good quality or last

Megaman 11w GU10 Reflector 50w Equiv Another supplier of these and other low energy lamps is alertelectrical.com i found them very competitive. If you purchase over a certain amount they are delivered free of charge? Part Number 141432 for the cool white 4000k version