I had bought these lights, because we do not have a motion lamp in the yard and I did not feel like me a "abzufummeln" to meet the keyhole. I find the lamp for the purpose of the light output is sufficient. There are lit at the front door even the two stages. Installation is also simple! Either it is stuck (as in my case) and even though it was quite cold the day keeps the lamp 1A. Or you can use the supplied bracket to the fixed screw.
