The product has been as usual from Amazon, delivered quickly. During the assembly there was the first problem, you could not fit the screen, since the distance between the guide to spotlight edge was too small. Using four washers I was able to increase the distance to the required extent. But the rest could without instructions (not available) be easily assembled Then the 1st lighting test and I must now specifying 50W - meet energy-saving lamp 250 W doubt strongly. A 250 W halogen spotlight delivers felt more light but also in a different color temperature. With the supplied lamp me the light was definitely too weak. I have the lamp now exchanged for a Walimex 85W energy-saving lamp and the combination now meets my desired amount of light.
Conclusion: For the price one must not expect a Ferrari, with a bit of craft experience and upgrading of the light intensity Studioset met my personal requirements.