The problem arises when one wants to read from the manual a bit more than you can intuitively recognize the device anyway. Here noted at most clearly that it is a Chinese product, since in this culture manuals do not have high value. For example, is spoken by a fine adjustment knob, its function and handling is not described and only try and hang around a halfway opens. That the user is only supplied (alongside Chinese) in English, at least does not bother me, but I have not found them online for download - on the go, if you do not have the printed copy here.
It should be noted that the light is supplied without a power supply. I have therefore bought the recommended Ersatzakkuset including charger (4in1 Charger Set for Sony NP-F970 battery incl 2x spare batteries Patona). Thus, almost the price of light doubles. However, compared with other products so that is the service life of the lamp professional long and the second replacement battery has an additional energy source at hand. It should be noted that the light nearly doubles the battery in weight. Practically this results in no problem.
There are included 4 different colored filter plates, which can be pushed well and latching. The practical use has me undeveloped, since the color temperature well with the lamp itself (50% of 5500K LEDs, 50% 3200K - each color channel can be controlled well separated in its brightness) can be set. Appears with the matt white filter which makes however the light is not appreciably softer the most sense.
All in all for the price a recommendable device, therefore I forgive 5 Stars.