But the first LED light that even my wife likes ;-) The dimensions are slightly different.

I've got four pieces of pears for our attic. Previously four 40W halogen bulbs were also already used other LED bulbs, although not really convinced me about where 3Meter high loft.
These LEDs now achieve really the specified and necessary brightness for the great room. The beam is well focused and well illuminated very evenly.
The light is almost perfect warm white, making it the first LED bulb that not only me, because the 1/8 lower consumption, but also my wife in color temperature and light effects like!

Note:
Due to the generous cooling fins of the cylindrical part of the LED lamp is a few millimeters shorter than that of a halogen spot. Therefore, I had only the trouble LED bulb to twist the bayonet. But with my radiator bar I could see the internal versions a bit loose, so that they come out in the housing slightly and then the bulb are also attached and could be arrested.

Please also read my above product picture:
In the left conventional halogen bulb, the cylindrical part is 23mm long.
With this LED bulb of the cylinder is only 18 mm long.
Depending on the lamp socket that can cause problems during installation.
The length of the conical reflector of 46mm and the overall length of 53mm on the terminals are the same. The diameters are the same.
Thomas