Low profile light

1. A luminaire, comprising:

a heat spreader;

a heat sink thermally coupled to the heat spreader;

an outer optic securely retained relative to at least one of the heat spreader and the heat sink;

a light source disposed in thermal communication with the heat spreader, the light source comprising a plurality of light emitting diodes (LEDs) that are disposed on the heat spreader; and

a power conditioner configured to receive AC voltage and to deliver DC voltage to the plurality of LEDs, the power conditioner being disposed on an opposite side of the heat spreader as the plurality of LEDs;

wherein a combination defined by the heat spreader, the heat sink and the outer optic is so dimensioned so as to:

cover an opening defined by a nominally sized can light fixture, and

cover an opening defined by a nominally sized electrical junction box;

wherein the heat spreader and heat sink combine to form a base; and

wherein the base is absent heat sink fins.

2. The luminaire of claim 1 wherein the heat spreader, the heat sink and the outer optic, in combination, have an overall height H and an overall outside dimension D such that a ratio of H/D is equal to or less than 0.25.

3. The luminaire of claim 1 wherein the heat sink is disposed diametrically outboard of the heat spreader.

4. The luminaire of claim 1 wherein the heat sink is substantially ring-shaped and disposed around and coupled to an outer periphery of the heat spreader.

5. The luminaire of claim 4 wherein the heat spreader and the heat sink are integrally formed.