LED Light Source Utilizing Magnetic Attachment

A method for retro-fitting an existing light fixture having an enclosure comprising a ferromagnetic material and plurality of legacy light sources, at least one of said legacy light sources being powered through a connector, said method comprising:

• replacing at least one of said legacy light sources with an LED-based light module, said LED-based light module comprising:
• a heat-conducting substrate;
• and
• a plurality of LEDs bonded to a first surface of said heat-conducting substrate such that heat generated by said LEDs is directly transferred to said heat-conducting substrate, wherein said heat-conducting substrate comprises a second surface comprising a ferromagnetic material;
• magnetically attaching said LED-based light module to said enclosure;
• and
• powering said LED-based light module from said connector.

A luminaire comprising:

• a heat-dissipating structure comprising a first ferromagnetic material;
• and
• an LED-based module, said LED-based module comprising:
• a heat-conducting substrate;
• and
• a plurality of LEDs bonded to a first surface of said heat-conducting substrate such that heat generated by said LEDs is directly transferred to said heat-conducting substrate, wherein said heat-conducting substrate comprises a second surface comprising a second ferromagnetic material, wherein one of said first and second ferromagnetic materials is magnetized and wherein said heat-dissipating structure and said heat-conducting substrate are bound together by a magnetic field provided by said magnetized ferromagnetic material.