A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a slide that frictionally engages the interior of the housing, allowing a user to adjust the spacing between the light emitting diode and the lens as desired. Personal cooling apparatuses usable with the lighting apparatus are also described. Auxiliary undergown switches are also described as are personal cooling apparatuses.

Deterrent device attachments are provided each having a light emitting thermal source positioned by a support board to emit light from within a housing of the deterrent device, with the support board bent to provide surface areas to dissipate heat generated by the light emitter.

A power source housing for use with a high mast lighting apparatus has a front face and an opposing back face, and a first end face and a second end face disposed opposite the first end face, the first end face defines an aperture sized and shaped to receive an extension member of a high mast lighting system. At least two opposing side faces extending from the front face to the back face, and power source housing cooling fins extend outward from each of the at least two opposing side faces.

A power source housing for use with a high mast lighting apparatus has a front face and an opposing back face, and a first end face and a second end face disposed opposite the first end face, the first end face defines an aperture sized and shaped to receive an extension member of a high mast lighting system. At least two opposing side faces extending from the front face to the back face, and power source housing cooling fins extend outward from each of the at least two opposing side faces.

A thermally conductive polymer luminaire includes a polymer housing including at least one thermally conductive filler to configure the polymer housing as a thermally conductive polymer housing. The housing includes an inner surface, an outer surface, and a thickness extending between the inner surface and outer surface. The thickness varies along a length of the housing. An electrical component is mounted to the inner surface of the housing opposite a location of the housing having a reduced thickness to facilitate thermal energy release from the housing. A light source is mounted to the housing and electrically connected to the electrical component for emitting light from the housing.

A trim member for a lighting device module includes an annular body having a first end portion that is connectable to a housing of the lighting device module and has a light receiving opening, and a second end portion opposite to the first end portion. The second end portion has a light emitting opening and is configured to be positioned outside of the housing of the lighting device module. A first curved or tapered surface extends from the light receiving opening toward the light emitting opening, and has a diameter that increases toward the light receiving opening. A second curved or tapered surface extends from the first curved or tapered surface to the light emitting opening, and has a diameter that increases toward the light emitting opening.

The present disclosure provides a power supply device and a high-power illumination system. The power supply device includes: a housing, where the housing includes a first bottom plate having a first surface on which a first heat sink is provided and a second surface on which a thermal conductive potting layer is provided; and a printed circuit board, where the printed circuit board is located in the housing, the printed circuit board includes a circuit board body and multiple electronic components arranged on the circuit board body, at least part of the multiple electronic components is arranged facing the second surface of the first bottom plate, and the electronic component of the at least part of the multiple electronic components is partially immersed in the thermal conductive potting layer to conduct heat dissipated by the electronic component to the first heat sink for natural heat dissipation of the electronic component.

The present disclosure provides a power supply device and a high-power illumination system. The power supply device includes: a housing, where the housing includes a first bottom plate having a first surface on which a first heat sink is provided and a second surface on which a thermal conductive potting layer is provided; and a printed circuit board, where the printed circuit board is located in the housing, the printed circuit board includes a circuit board body and multiple electronic components arranged on the circuit board body, at least part of the multiple electronic components is arranged facing the second surface of the first bottom plate, and the electronic component of the at least part of the multiple electronic components is partially immersed in the thermal conductive potting layer to conduct heat dissipated by the electronic component to the first heat sink for natural heat dissipation of the electronic component.

An example horticulture device includes a housing. The housing includes a central cavity having an inlet and an outlet in fluid communication with the inlet through the central cavity. The horticulture device also includes at least one heat sink fixed relative to the housing. Each of the at least one heat sinks include a main body and a plurality of fins extending therefrom, a plurality of passages being provided between the fins of the at least one heat sink, between adjacent ones of the at least one heat sinks, or both. The horticulture device also includes at least one light source fixed relative to the at least one heat sink and in thermal contact with the at least one heat sink, and a fan disposed within the housing and configured to pass air through the plurality of passages and into the central cavity. A method is also disclosed.

A lighting device system includes a lighting device module having a module housing configured to be selectively inserted through an opening in a panel or a base. Driver electronics are configured to be electrically coupled to the lighting device module. A heat sink member is located adjacent the opening in the panel or the base. A movable biasing device has a first position to apply a bias force on the module housing, pressing the module housing toward the heat sink member to increase thermal transfer. The moveable biasing device has a second position to provide improved access to the driver electronics through the opening in the panel or base relative to the first position. The movable biasing device is selectively moveable from the first position to the second position, or from the second position to the first position.