I rate this not the fast delivery and good packaging, but the handling and image quality. The picture quality is simply insufficient. Even if the picture quality is the intensity of the illumination varies by the LEDs so bad that I can not detect correlations in the environment of the area to be inspected. Application car sunroof mechanism. At a distance of about 4 cm can be something fairly sharp recognize the rest is out of focus. The money you can save or spend more money on better technology. But I can not give a higher recommendation for wertigeres device, have nothing further tried.