Why I bought the headlight bulb?
My car, a BMW 1 Series 2008er had a lamp defect on he left. Since my car had in the workshop anyway, I have been there the same asked to replace the bulb.
In the evening - it was dark - I picked up my car and had from the first moment the feeling that the road is quite dark. My wife spoke to me immediately that she has also felt a little light on the road and was extremely dark just the left side.
Since they mostly travel by car, I looked around for a replacement immediately and stumbled through Testbereichte (AMS) to the Osram H7.
Bought, installed and lo and behold -> A difference like night and day!
The H7 lamps appear much brighter and more pleasant, as my old bulbs (I naturally both by exchanged). The illumination is felt twice as wide (I measured it, of course not), in addition, the light does not affect long so diffuse as the old lamp.
The change from "Noname" or pseudo-brand Osram is worthwhile in any case.
For durability, I can not say much because I have installed the bulbs only been about 4 weeks in the car. But you have to say that my previous lamps max. 12 months have held, so I put myself on a similar period.
I buy the Osram H7 definitely be back, great product at a reasonable price.