Abstract: A switch mode power supply controller provides power to a pair of light sources. The controller includes a low voltage programmable current source and adjusting elements for independently adjusting the current to the LED light sources. The controller also includes a first communication port for receiving a communication from an external device, such as a dimmer, or from another power supply controller; and a second communication port for sending a communication to a third power supply controller. These ports provide an upstream and downstream communication capability through a chain of controllers so that input from a device can be communicated upstream and downstream.

Abstract: A high efficiency LED lighting system with four LED modules. Each module has heat sink assemblies arranged in rows. The heat sink assemblies comprise an LED package mounted on a heat sink reflector. The LED package has a flat find diffusing lens positioned over the diode. A diffusing lens is spaced apart from the heat sink assemblies. A switch mode power supply controller provides power to a pair of light sources. The controller includes a low voltage programmable current source and adjusting elements for independently adjusting the current to the LED light sources. The controller also includes a first communication port for receiving a communication from an external device and a second communication port for sending a communication to a third power supply controller. These ports provide an upstream and downstream communication capability through a chain of controllers so that input from a device can be communicated upstream and downstream.

Abstract: The disclosed subject matter provides a method for installing and controlling a plurality of electrical devices such as lighting, air-conditioning, heating, and access control. The control may be from a plurality of sensors, so that one or more device can be controlled according to a sensor. Sensor types include dimmers, occupancy sensors, temperature sensors, pressure sensors, daylight sensors, On/Off touch sensors, other sensor types, or a combination of sensors.

Abstract: A switch mode power supply controller provides power to a pair of light sources. The controller includes a low voltage programmable current source and adjusting elements for independently adjusting the current to the LED light sources. The controller also includes a first communication port for receiving a communication from an external device, such as a dimmer, or from another power supply controller; and a second communication port for sending a communication to a third power supply controller. These ports provide an upstream and downstream communication capability through a chain of controllers so that input from a device can be communicated upstream and downstream.

Abstract: The disclosed embodiments describe a cost and energy efficient combined lighting and air conditioning fixture. This combined system may employ a flexible distributed air handler that can employ distributed heat exchangers to a liquid loop. The described system may be comprised of distributed dampers, heat exchangers, and air handlers that are controlled from a controller integrated into a ceiling, floor, or wall unit. The controller may also be part of a combined LED lighting drop-in ceiling fixture.

Abstract: A switch mode power supply controller provides power to a pair of light sources. The controller includes a low voltage programmable current source and adjusting elements for independently adjusting the current to the LED light sources. The controller also includes a first communication port for receiving a communication from an external device, such as a dimmer, or from another power supply controller; and a second communication port for sending a communication to a third power supply controller. These ports provide an upstream and downstream communication capability through a chain of controllers so that input from a device can be communicated upstream and downstream.

Abstract: The present disclosure relates to a user-installable room cooling system. This system is both energy and cost efficient and utilizes distributed heat exchangers to a liquid loop. An exemplary embodiment may be comprised of a heat to air transfer plate, a heat pump, a block of heat conductive material, a pump, a pipe interface, a temperature control system, an outside radiator or evaporation cooler, and will be filled at the highest point.

Abstract: A high efficiency LED billboard lighting system with four LED modules replacing existing lighting modules. Each module has six heat sink assemblies arranged in two rows. The heat sink assemblies comprise an LED package mounted on a heat sink reflector. The LED package has a flat fine diffusing lens positioned over the diode. A diffusing lens is spaced apart from the heat sink assemblies. An LED controller is provided for each module, with power factor corrected, switch mode Power Supply, where the secondary side can be connected directly to a battery to monitor and charge one or more battery, and can run directly from the battery.

Abstract: A bypass circuit is provided for each LED in a series to permit continued operation with reduced lighting in the event of an LED failure. The bypass circuit is provided in parallel to the LED and comprises a Zener Diode provided in parallel to a thyristor. Upon LED failure, the voltage across the Zener Diode is increased thereby triggering the thyristor which is maintained in a triggered mode as long as current flows through the series circuit.

Abstract: An LED assembly comprising an LED light source positioned between a heat sink and a heat conductive glass element, and at least one hold-down element, such that the hold-down element provides a compressive force to hold the heat conductive glass element against the LED light source, thereby pressing the LED light source against the heat sink. In one example, a ? inch glass element with a surface area of five times the LED diffuser surface area is held over the LED light source by one or more sections of spring wire inserted through holes in the heat sink.