These LED lamps are incorporated into a standard Glasghäuse what the charm is that they, unlike other LED lamps even give some light to the rear. They also fit into all lights because the dimensions are not stretched in the length. A striking difference, even to halogen spotlights, is the space-filling beam angle of 120 °. You can not really illuminate anything effectively. In return, however, to obtain a room-filling light. In terms of quantity of light and efficiency, these lamps are the best thing I've ever seen. Therefore, I have ordered twice.