Abstract: A luminaire has a LED module, a block structure with a cavity, a plurality of fins extending from the block structure, and a slot extending through a sidewall of the block into the cavity. The LED module is slidably received on a mounting surface of the slot and configured to project light through an aperture of the cavity. The mounting surface has an area equal to or larger than that of the aperture.

Abstract: A luminaire has a light engine configured to be attached to a light source circuit board or LED module. The light engine may have a block structure with a cavity extending into the block structure from an aperture. The light engine may also have a slot, extending through a sidewall of the block into the cavity perpendicular to a first direction. The slot may form a mounting surface that has a larger surface area than an area of the aperture, onto which the circuit board or LED module may be attached. Further, the circuit board or LED module may be removable from the cavity and slidable through the slot.

Abstract: An LED downlight comprises a primary reflector having an upper end and an open lower end, an LED printed circuit board assembly disposed in the upper end of the reflector, an optical assembly positioned beneath the LED printed circuit board assembly, a secondary reflective ring positioned beneath the LED printed circuit board assembly and within the primary reflector housing, the secondary reflector ring supporting the optical assembly and improving light distribution.

Abstract: A method for saving energy in locations using a plurality of luminaires situated in close proximity to each other, the method including providing each luminaire with a sensor for detecting presence of a person in proximity to the luminaire, a component for enabling passage of current through to the luminaire when the presence is detected and disabling the passage of the current through to the luminaire after a predetermined timeout, and a switch coupled between the component and the luminaire for enabling powering of the luminaire ON, wherein passage of power to each luminaire is enabled by the component when the presence is detected and the luminaire is powered ON by the switch.

Abstract: A modular luminaire comprises a luminaire base having a heat sink and a primary LED module, one of a plurality of interchangeable decorative elements disposed against the luminaire base, the plurality of decorative elements having a central aperture for light output, one of a plurality of interchangeable collar assemblies connected to the base and compressing the one of a plurality of decorative elements, the collar having a central collar aperture coaxial with the central opening of any of the decorative elements.

Abstract: An LED downlight comprises a primary reflector having an upper end and an open lower end, an LED printed circuit board assembly disposed in the upper end of the reflector, an optical assembly positioned beneath the LED printed circuit board assembly, a secondary reflective ring positioned beneath the LED printed circuit board assembly and within the primary reflector housing, the secondary reflector ring supporting the optical assembly and improving light distribution.