Disclosed are apparatus for controlling a lamp and a method thereof. The apparatus for controlling a lamp includes an information collection device that receives light amount information and temperature information of LED chips, which correspond to a plurality of LED boards, respectively, from the plurality of LED boards through one port, and a controller that controls a driving current for driving the LED chip based on the light amount information of the LED chip or the temperature information of the LED chip.

The application relates to an over-temperature protection circuit of an LED driving power supply. The over-temperature protection circuit comprises a temperature detection circuit for sensing a temperature change; a switch control circuit connected to the output end of the temperature detection circuit and controlling the on-off of the circuit according to the output signal of the temperature detection circuit; a shunt circuit connected to an output end of the switch control circuit and shunting current when the switch control circuit is in an on state; a current detection circuit connected to an output end of the shunt circuit and changing a current detection signal according to an output current of the shunt circuit; the output end of the current detection circuit is connected with the feedback loop. The application has the advantages of low cost, stable performance, little environmental influence and high precision.

The application relates to an over-temperature protection circuit of an LED driving power supply. The over-temperature protection circuit comprises a temperature detection circuit for sensing a temperature change; a switch control circuit connected to the output end of the temperature detection circuit and controlling the on-off of the circuit according to the output signal of the temperature detection circuit; a shunt circuit connected to an output end of the switch control circuit and shunting current when the switch control circuit is in an on state; a current detection circuit connected to an output end of the shunt circuit and changing a current detection signal according to an output current of the shunt circuit; the output end of the current detection circuit is connected with the feedback loop. The application has the advantages of low cost, stable performance, little environmental influence and high precision.

A method and apparatus for a horticultural light that projects either a substantially uniform target illuminance onto a flat surface or an increasing target illuminance onto a flat surface. The horticultural light uses a refractor to receive the raw light distribution from one or more LEDs and then distributes an optically varied distribution having a minimized intensity at centerbeam with an increasing beam intensity as the beam width increases. The horticultural light utilizes both ultraviolet (UV) LEDs and non-UV LEDs arranged as an array to produce the optically varied distribution. A lens array is disposed in relation to the LED array and is comprised of UV compatible lenses and non-UV compatible lenses. A device may be disposed in relation to the UV compatible lenses to disallow incidence of UV radiation onto non-UV compatible lenses.

A group of LED fixtures formed in rows wherein power is delivered to each fixture in the group from a central power unit thus eliminating the necessity of providing a separate power source for each fixture. A circuit is provided to protect the LEDs from excessive temperatures that may result in fire hazards and to bypass a row if an open circuit is detected in the row.

A group of LED fixtures formed in rows wherein power is delivered to each fixture in the group from a central power unit thus eliminating the necessity of providing a separate power source for each fixture. A circuit is provided to protect the LEDs from excessive temperatures that may result in fire hazards and to bypass a row if an open circuit is detected in the row.

A method and apparatus for an indoor horticultural system that utilizes a wired network to control lighting. The wired interface is used to relay both analog and digital intensity control information, whereby an analog signal is used to control the intensity of all LED arrays in each lighting fixture during a first mode of operation and a digital signal is used to control the intensity of each individual LED array in each lighting fixture in a second mode of operation. Both the analog and digital signals utilize the same physical interface.

A light fixture includes a communication input and output, a plurality of LED lights, an LED driver, first and second control modules, and a feedback circuit. The communication input is configured to receive a control signal. The communication output is configured to relay the control signal to a downstream light fixture. The LED driver is electrically coupled with the plurality of LED lights. The first control module is in signal communication with the communication input and output and the LED driver and is configured to transmit a driver signal to the LED driver that controls operation of the plurality of LED lights. The second control module is in signal communication with the first control module. The feedback circuit is in signal communication with the second control module and the LED driver. The LED driver transmits a feedback signal to the second control module via the feedback circuit.

A flashlight assembly includes a body having a head portion at one end and an opposing tapered tail portion and a clamping assembly on a bottom side of the body. The tail portion of the body tapers rearwardly towards a tail end thereof and downwardly from an upper side towards the bottom side, such that the tail end of the tail portion merges with the bottom side of the body and forms an inclined contoured surface extending from the bottom side to the top side. A contoured switch is mounted within the inclined angled surface of the tapered tail portion, and includes a safety bail pivotably movable to selectively mechanically impede operation of the switch.

A flashlight assembly includes a body having a head portion at one end and an opposing tapered tail portion and a clamping assembly on a bottom side of the body. The tail portion of the body tapers rearwardly towards a tail end thereof and downwardly from an upper side towards the bottom side, such that the tail end of the tail portion merges with the bottom side of the body and forms an inclined contoured surface extending from the bottom side to the top side. A contoured switch is mounted within the inclined angled surface of the tapered tail portion, and includes a safety bail pivotably movable to selectively mechanically impede operation of the switch.