Since I after buying a 125 watt lamp now had a lamp in reserve, I have decided for this product in order to obtain a better luminous efficiency. This is also the case! For product: It is quite simply built, but corresponds in appearance and operation to those who sold expensive. It fully met its purpose. The lamp sockets can be independently adjusted. It would be conceivable, for example, to provide one with a reflector screen and by swinging the other version this with a light umbrella. If you use both Fasssungen with a reflector screen, as can indeed be the versions adjusted, but the mittlerte screen recording does not come automatically with, but must be adjusted separately (somewhat cumbersome). You can complain about the inclusion of the reflector or Durchlichschirm in the middle. Although it is a spring steel-cutting in the implementation incorporated, but the implementation is very generous in diameter. The locking screw does not prevent a slight undershoot of the screen in the angular position, which must be compensated for by adjusting the lamp socket widerum. Overall, the product for the amateur photography is, however, thoroughly recommended and it fulfills its purpose in any case.