The camera is inexpensive, but the workmanship not up to scratch.

The package should at 26.01. arrive and was then delivered at 24.01 (pleasant surprise).
The unit itself was unfortunately defective. There was the cover of the camera head (lens) and the board with the camera and the LEDs go out of the housing. Final inspection at the manufacturer ????
A quick test showed that still functioned the device. But it was thus neither waterproof nor protected against dirt.
The optical results were measured by the price OK (One should not expect any miracles there.) 720p is probably somewhat exaggerated. This gives the appearance not her. But for most purposes the service is adequate. The brightness can be adjusted continuously, with one also influences the depth of field.
Unfortunately it was not possible to get a replacement, but it was only a possible reversal. Therefore 1stern deduction.
I have a new order, let's see if that is OK then.