Patent ID: 9631789
Date: 2017-04-25
CPC Classifications: F21S,F21V,F21Y,Y02B

Claim:
1. A method of upgrading, to an illumination device based on one or more light-emitting diodes (LEDs), a fluorescent downlight illumination device comprising (i) a fixture at least partially recessed into a ceiling, (ii) a reflective housing disposed in the fixture, (iii) a socket for a fluorescent light bulb disposed within the housing, and (iv) disposed outside of the housing and electrically connected to the socket, a junction box comprising (a) electrical connections to a power source and (b) a ballast for receiving power from the power source and supplying compatible power to the fluorescent light bulb, the method comprising: providing a retrofit kit comprising (i) a lighting module comprising: (a) one or more LEDs, (b) a substrate having a bottom surface upon which the one or more LEDs are disposed, and (c) a heat sink disposed on a top surface of the substrate opposite the bottom surface, (ii) a driver module comprising circuitry for receiving power from the power source and supplying compatible power to the one or more LEDs, (iii) a flexible conduit connecting the lighting module to the driver module and containing therewithin a plurality of wires electrically connecting the lighting module to the driver module, and (iv) an alignment bracket for attachment within the housing and receiving the lighting module, wherein the heat sink further comprises a thermally conductive material shaped to define (a) a plurality of fins extending away from the substrate, and (b) integral with one or more of the fins, a cylindrical mounting tube; removing the socket for the fluorescent light bulb from the housing; disconnecting the ballast from the junction box; connecting the electrical connections of the junction box to the driver module; affixing the driver module to the fixture outside of the housing and above the ceiling, the flexible conduit extending into the housing such that the lighting module is positionable within the housing; attaching the alignment bracket within the housing; and seating the lighting module into the alignment bracket to retain the lighting module within the reflective housing, the lighting module remaining not directly electrically connected to the junction box during operation of the lighting module.