The processing of the product I find perfectly fine. The attachment is made of plastic and is eventually likely to break, but depending on other conditions it can hold many, many years. The fastening screw is after all made of metal.
What the manufacturer has not thought of, is that if you change the batteries, you have to loosen the securing screw, because the housing opens upwards. If you have this light under the saddle, probably no one has enough space to push out the batteries department flap. (Because the laser down to look, you can see the light does not turn the other way.)
The package was a rather simple cardboard, which probably meant that the red light portion at the corners was slightly scratched. I have not complained about this in the function does not mind.
The package has the text in English and Chinese. There were no instructions for use.
I pulled the one point for the scratches, the upward opening flap and batteries for Insufficient pack. Perhaps you could also deduct two, but the price is so low.
