Abstract: Water or air is directed through a hood or double cylinder cooling device for providing cooling to one or more light bulbs used in growing plants in greenhouses, aquarium, and hydroponic applications. A water recirculation system with a reservoir and a pump may provide a flow of cooling water through tubing to the hood. The hood provides a housing and a tube which contains one or more light bulbs which can be accessed or replaced through an end of the tube which projects through the housing. The light holder includes an enclosed electric box and a plurality of curved fins which expand against the inside glass tube. Various reflector housing shapes and reflectors direct light to plants. The end cap is bolted to a split ring flange attached to the outer tube.

Abstract: An air-cooled light reflector apparatus for high intensity light sources typically used in indoor horticultural and agriculture applications. The reflector apparatus includes an internal reflector fixed to a curved assembly of hinged extruded sections, a unique adjustable light source mounting fixture bracket, a double-paned insulating glass window and an insulating cover enclosing the apparatus. Forced air is provided to the apparatus for cooling the light source, while the heated air is ducted externally to minimize any rise in ambient air temperature. The double-paned insulating glass and enclosing insulating cover further minimize rise in ambient air temperature. The curvature of the internal reflector provides optimal photometric characteristics.

Abstract: Water or air is directed through a hood or double cylinder cooling device for providing cooling to one or more light bulbs used in growing plants in greenhouses, aquarium, and hydroponic applications. A water recirculation system with a reservoir and a pump may provide a flow of cooling water through tubing to the hood. The hood provides a housing and a tube which contains one or more light bulbs which can be accessed or replaced through an end of the tube which projects through the housing. The light holder includes an enclosed electric box and a plurality of curved fins which expand against the inside glass tube. Various reflector housing shapes and reflectors direct light to plants. The end cap is bolted to a split ring flange attached to the outer tube.

Abstract: An apparatus for use with high intensity discharge lamps is provided that controls and removes heat from high intensity discharge lamp assemblies used in industrial lighting applications, such as large retail stores, warehouses and facilities for growing plants indoors. It provides an improved method for water cooling a high intensity discharge lamp assembly by removing significantly more heat than traditional and most commonly used air cooling methods. Application flexibility is provided to match desired application-specific requirements with various apparatus configurations.

Abstract: An air-cooled light reflector apparatus for high intensity light sources typically used in indoor horticultural and agriculture applications. The reflector apparatus includes an internal reflector fixed to a curved assembly of hinged extruded sections, a unique adjustable light source mounting fixture bracket, a double-paned insulating glass window and an insulating cover enclosing the apparatus. Forced air is provided to the apparatus for cooling the light source, while the heated air is ducted externally to minimize any rise in ambient air temperature. The double-paned insulating glass and enclosing insulating cover further minimize rise in ambient air temperature. The curvature of the internal reflector provides optimal photometric characteristics.

Abstract: Water or air is directed through a hood for providing cooling to one or more light bulbs used in growing plants in greenhouses and hydroponic applications so that the plants are not damaged by excessive heat. A water recirculation system with a reservoir and a pump which provides a flow of cooling water through tubing to the hood. The hood provides a housing and a tube which contains one or more light bulbs which can be accessed or replaced through an end of the tube which projects through the housing. Various shapes and sizes of hoods hold various volumes of water ranging from about 0.5 to 3 gallons. A pressure relief valve protects against excessive pressure in the hood. Various reflector housing shapes and reflectors direct light to plants.