A cooling system of a light emitting diode (LED) lamp includes: a circulatory pipe, a pump, an LED cooling module and a power source cooling module, wherein the LED cooling module is a fluid cooling mechanism for an LED lamp, the power source cooling module is a fluid cooling mechanism for an LED lamp power source module, the circulatory pipe is connected to the LED cooling module and the power source cooling module, the pump is assembled to the circulatory pipe, causing a fluid in the circulatory pipe to flow through the LED cooling module and the power source cooling module and form a circulatory flow, thereby achieving a cooling and temperature reducing function of the LED lamp and the power source module at the same time.

The system is provided with has a light head and a light source is mounted in the light head that radiates visible light. An optical train is mounted in the light head adjacent the light source to focus the visible light to a concentrated light beam line that is directionally focused and has a concentrated power density.

A lighting fixture includes a lamp housing, a fan, a heat sink and a light engine. The lamp housing includes an air inlet opening, an air outlet opening and an illumination opening. The fan is installed inside the lamp housing, and the fan includes an air inlet corresponding to the air inlet opening and an air outlet corresponding to the air outlet opening. The heat sink includes a plurality of cooling fins, and each cooling fin is arranged corresponding to directions of the air outlet of the fan and the air outlet opening. The light engine includes one side attached onto a plane surface of the heat sink and another side arranged to face toward a direction of the illumination opening. Accordingly, the use of active cooling method is able to effectively increase the cooling effect of the lighting fixture.

A cooling module includes a cooling element having a closed central part and heat-conducting elements on two sides of the central part, as well as a feeding apparatus for air. The feeding apparatus is designed as an integrated twin fan which, on the one hand, feeds ambient air from one side of the central part and, on the other hand, feeds ambient air from the other side of the central part to the cooling element.

A combination axial fan and LED lighting system. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture. The invention includes a vented mechanical equipment casing configured to include an opening to direct a portion of the air exiting the fan cavity into an equipment chamber housing the mechanical equipment and configured to direct the air to encounter the mechanical equipment and operate to reduce the temperature of the equipment.

A system for removing snow and ice is provided. The system has a light head mounted to rotate. A light source is mounted in the light head and radiates visible light. An optical train is mounted in the light head adjacent the light source to focus the visible light to a concentrated light beam line that is directionally focused. A controller is in communication with the light head and is programmed to rotate the light head thereby sweeping the concentrated light beam along a surface.

Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through Which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can comprise a plurality of apertures and a second set of illumination devices. The system further can include a lamp housing coupled to the grille, the lamp housing can include a first set of illumination devices. Also, a plate can be coupled to the grille so that the plate is adjacent to the second set of illumination devices.

A light emitting diode (LED) system that includes a LED, a heat sink, a fan housing, a fan, and a cover is disclosed. The heat sink is typically coupled to the LED, and the fan housing is typically coupled to the heat sink opposite the LED. The fan housing is sized to fit within an electrical junction box and includes a fan housing aperture that extends through the fan housing. A cover may be coupled to the fan housing opposite the heat sink. The system may include at least one air intake opening and at least one air exhaust opening. When activated, the fan may external air into the fan housing through the air intake opening and direct the air toward the heat sink and ultimately through the air exhaust opening. In so doing, the temperature of the heat sink and the LED is reduced.

Disclosed is a light-emitting diode illumination type ellipsoidal spotlight. The ellipsoidal spotlight includes a light source part, wherein the light source part includes a chip-on-board (COB) LED fixed and installed to a front frame which is mounted on a front surface of a heat pipe type heat radiation means in a vertical direction and configured to generate light of predetermined colors required for stage lighting in response to an output voltage of a power supply unit and a control signal output from a control unit, a condensing lens unit fixed and installed to be separated apart from a front side of the front frame by predetermined distances through a plurality of supporters and configured to condense light irradiated from the COB LED toward a transmission window of a light radiation part, the heat pipe type heat radiation means tightly installed to a rear surface of the COB LED and configured to radiate heat generated in the COB LED by being integrally provided with a heat pipe filled with a coolant and a heat radiation fin, a main ventilation fan for cooling the heat radiation means installed to the rear surface of the COB LED and configured to forcibly suction external air through an air inlet hole formed between the light radiation part of the main body and the light source installation part to blow the suctioned air toward the heat pipe type heat radiation means, the power supply unit fixed and installed to an internal side of a rear frame, which is integrally fixed and installed to be separated apart from the front frame by a predetermined distance through the plurality of supporters and a plurality of screws, and configured to provide a direct-current (DC) voltage required to drive the COB LED, the control unit fixed and installed to the internal side of the rear frame and configured to generate color and moving control signals for the COB LED, a main ventilation fan for exhausting air fixed and installed to an external side of the rear frame and configured to forcibly discharge warm air which is inside the light source installation part, and a rear cover fixed and installed to the rear frame, configured to discharge the warm air which is inside the light source installation part, and having a plurality of air outlets of a bored shape surrounding the main ventilation fan for exhausting air, and on which a power cable connection terminal connected to the outside and a control signal and communication line connection terminal are installed. Therefore, a lifespan of the light source employed in the ellipsoidal spotlight may be drastically prolonged and power consumption and cost related thereto may be considerably reduced to improve economic feasi

A dust prevention and heat dissipation module for a color wheel and a light source system employing the same. The color wheel is sealed in a color wheel housing which has an air inlet and an air outlet. The dust prevention and heat dissipation module has a leading-in air channel in communication with the air inlet of the housing, a leading-out air channel in communication with the air outlet of the housing, a filtering device at an inlet of the leading-in air channel and an outlet of the leading-out air channel, and a fan which circulate the air via the leading-in air channel and the leading-out air channel. The air flow caused by the fan realizes heat dissipation of the color wheel, and the filtering device filters the air flowing through the color wheel housing, thereby reducing the amount of dust adhered to the surface of the color wheel.