A lighting device has a support that can be screwed into a standard 120 volt light socket. A ring with multiple, alternating color, circumferentially spaced LEDs, is connected to the support and a reflector is provided over the ring for reflecting light from the LEDs past the ring. A power supply circuit...http://www.google.se/patents/US6149283?utm_source=gb-gplus-sharePatent US6149283 - LED lamp with reflector and multicolor adjuster
