Product comes from China. Nevertheless, after a few days there. Clean screw-runs. Only the pure screw something with feeling. Had the bulbs apparently purely screwed too tightly, so that the wires to a cold junction (as I found out when I took it apart) breaks. That the heat sink is not one hundred percent fixed in the socket. But seriously. Normally you screwed it once inside and then the `s. I, however, want to test where they would best advantage anywhere .... As I said, with feeling everything goes better. Get Hab incidentally without hesitation immediately a new and needed the defects do not send it back (after China ??). We also have immediately responded to my complaint. Exemplary. Well that's why I did then in order to find the error and the bulb disassembled. Heile but you do not get them apart. So for the price, the luminous means is really good. Have a similar already more than 1 year in use. No Problem.