Very good alternative to halogen spotlights

Have a sechsflammigen spotlights equipped with these lamps and am very excited. The light color is light, yet very pleasant. Too bad that the lamps do not like halogen lamps are dimmable. The power consumption is reduced from previously 300 W to 30 W now. Thus, the purchase price paid for itself in less than a year. Provided the lamps last about the promised life. I will report it.