The lamp is not Worse basically if you caught a functioning part. The first lamp I had to return it because after installing the FI switch flew out again. The second lamp was then an incorrectly installed motion detectors. He had directed the 180 ° radius not forward but to the wall. After half an hour bastellarbeit (not for beginners), the lamp then worked flawlessly. Toll I found the 180 ° detection angle into two parts set (2 x 90 °). The detection range is 3-12 meters to also meet the lamp. So if you are caught without a lamp error, they can know about ..
