Abstract: A luminaire comprised generally of a mounting plate including a plurality of mounting blocks secured to the mounting plate; and a plurality of LEDs, wherein at least one of the LEDs is positioned upon each of the mounting blocks. The mounting blocks include face portions and may be arranged in a plurality of configurations on the mounting plate.

Abstract: A LED dock light has a support surface, a plurality of light emitting diodes, a heatsink, and a flexible neck member. The light emitting diodes are coupled to a first side of the support surface and the heatsink is coupled to a second side of the support surface. The heatsink has a plurality of heat fins.

Abstract: A heat management system has a first heatsink coupled to a support surface. At least one heat pipe has a heat absorbing end in thermal connectivity with the first heatsink and a heat releasing end in thermal connectivity with a second heatsink.

Abstract: An emergency sign power supply with battery charger is provided. In some embodiments the battery charging circuit is formed by a single diode and a single resistor.

Abstract: An LED downlight fixture comprises an array of LEDs in thermal connectivity with a heatsink, the array of LEDs positioned adjacent a first aperture of a multi-piece reflector assembly, the multi-piece reflector assembly including a first reflector having the first aperture disposed in an upper portion of the first reflector and an opposed larger second aperture in a lower portion of the first reflector, a second reflector having a first aperture positioned adjacent the second aperture of the first reflector and a second aperture opposite the first aperture of the second reflector and defining a light exit passageway, a diffuser positioned proximal to and extending across the second aperture of the first reflector and the first aperture of the second reflector.

Abstract: A LED dimming circuit is provided. The LED dimming circuit has an LED driver, an LED dimmer, and at least one LED light source. A resistor is connected between a dimming control output of the LED dimmer and dimming control input of the LED dimmer. The LED dimming circuit may optionally include a fluorescent slide dimmer. The fluorescent slide dimmer may have a first connection to the dimming control input of the LED dimmer and a second connection to a circuit common of the LED dimmer. A method of providing an LED dimming circuit for dimming at least one LED light source using a fluorescent dimmer is also provided.

Abstract: A LED luminaire comprises a heat sink disposed above an LED array and in thermal communication with the LED array, the LED array having at least one red LED and a plurality of cool white LEDs, the at least one red LED providing a warmer correlated color temperature for an output light and the plurality of white LEDs providing a higher efficacy, a diffuser positioned to enclose the LED array between the heat sink and the diffuser, the diffuser color mixing the at least one red LED and the plurality of cool white LEDs rendering a red light from the at least one red LED indiscernible from a cool white light of the plurality of white LEDs, a reflector positioned adjacent the heat sink.

Abstract: A luminaire comprised generally of a mounting plate including a plurality of mounting blocks secured to the mounting plate; and a plurality of LEDs, wherein at least one of the LEDs is positioned upon each of the mounting blocks. The mounting blocks include face portions and may be arranged in a plurality of configurations on the mounting plate.

Abstract: The instant invention is a luminaire comprised generally of mounting plate including a plurality of mounting blocks secured to said mounting plate; and a plurality of LEDs, wherein at least one of said LEDs is positioned upon each of said mounting blocks. The mounting blocks include face portions having a plurality of pitches or angles and may be arranged in a plurality of configurations on said mounting plate.

Abstract: In order to spread the light being emitted from an LED, an LED light spreader has a light conductive end, an optical path conversion side, and a light transmitting side. The present invention enables a single LED to simulate the effect of having several discrete LEDs on a circuit board or may be configured to give the effect of having a single elongated light source.

Abstract: An improved efficiency fluorescent lighting system is described. The system utilizes reduced rows of fluorescent luminaires which are spaced much further apart than traditional spacing. The luminaires used in the system of the present invention have increased light output of each luminaire by up to fifty percent through a combination of use of a high efficiency lamp producing about 3250 lumens, an electronic dimming ballast having a ballast factor of about 1.2 and a luminaire having a spacing to mounting height ratio of at least 1.5.

Abstract: An interactive system on a server via which a client can remotely submit data used to making photometric calculations in which the system has one or more interrogative interfaces is provided. Data is requested from the client via the interrogative interfaces when the client accesses the system. Data is received from the client by the interactive system. Photometric calculations are performed using the data received from the client and the results of the photometric calculations are delivered to the client.

Abstract: A multiple lamp instant start ballast system has multiple fluorescent lamps and a ballast. The lamps have substantially similar current characteristics. The ballast has a ballast circuit operable to supply instant start starting voltages and operating currents, with the voltages and currents being approximately equal in magnitude and differing in phase by 360°/n, where n is the number of lamps. By connecting the ballast output leads to the first end of each lamp, the second ends of the lamps may be connected together creating a balanced n-phase system. Thus, wiring between the ballast and the second ends of the lamps is unnecessary. An improved light fixture adds a chassis and lamp sockets to the multiple lamp instant start ballast system described. The standard wire-way and wire-way cover are obviated since no wiring need be run to the second ends of the lamps. Wiring may be reduced by locating the ballast adjacent to the lamp first ends.

Abstract: A power supply for an emergency light includes a battery and battery charging circuit. The battery charging circuit is formed by two diodes and two resistors and possibly a capacitor.

Abstract: A dimming control for a high intensity lighting system uses a single additional control wire for control of the dimming function. The lighting system operates on multi-phase power. A transmitter for transmitting a control signal over the single control wire is connected between two of the phases of the multi-phase power supply, or between one phase and neutral. The transmitter, upon the occurrence of a predetermined condition, transmits a control signal to the single control wire. The control signal is a rectified portion of the power supply. The predetermined condition is motion as sensed by a motion sensor, operation of a timer, or operation of a manual switch. A receiver connected to the control line receives the control signal and switches the light to a low light output mode. The is accomplished by changing the capacitance of the ballast circuit for the light. Each lamp of the lighting system has a receiver connected to the single control wire.

Abstract: A control relay circuit and method for controlling a relay having a coil, for use, in particular, in operation of a light fixture circuit having an HID lamp. The relay control circuit has an input for receiving a control voltage signal and a voltage storage element connected across the input. The voltage storage element develops a voltage level as a function of time in response to the control voltage signal. A thyristor circuit, a switching element and the coil of the relay form a series circuit that is connected in parallel to voltage storage element A switch controller is connected in parallel to the voltage storage element and is also connected to the switching element.

Abstract: This safety lighting arrangement is especially suited for use with variously rated HID light sources having current ratings ranging from relatively low to relatively high values. The safety light arrangement includes a current transformer having a magnetizable core, a primary winding inductively coupled to the core for connection in series with the primary circuit in which the HID light source is connected, and a secondary winding inductively coupled to the core. The core is saturable by the primary winding current present when the current through the HID light source is as low as the current rating of one of the relatively low rated HID sources. The safety light arrangement also includes a monitoring relay connected across the secondary winding and maintained in an activated condition when the primary winding is traversed by current producing saturation of the core. This monitoring relay is set to drop out when current through the primary winding and the HID source is interrupted by a power interruption.

Abstract: An improved efficiency fluorescent lighting system is described. The system utilizes reduced rows of fluorescent luminaires which are spaced much further apart than traditional spacing. The luminaires used in the system of the present invention have increased light output of each luminaire by up to fifty percent through a combination of use of a high efficiency lamp producing about 3250 lumens, an electronic dimming ballast having a ballast factor of about 1.2 and a luminaire having a spacing to mounting height ratio of at least 1.5.