A control device comprising a front portion, at least one button cap, and a controller. The front portion comprises a plurality of button zones each comprising a tactile switch and at least one touch sensor. The at least one button cap is adapted to attach to the control device over at least one of the button zones such that the at least one button cap is positioned over the at least one touch sensor and interacts with the tactile switch in the at least one of the button zones. The controller determines which button zone and which location of the button zone is actuated in response to a combination of signals received from at least one of the tactile switches and at least one of the touch sensors.

A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit comprising two MOS-gated transistors, and a control circuit. The control circuit generates first and second drive voltages for individually controlling the MOS-gated transistors, and controls the gate coupling circuit to cause the MOS-gated transistors to conduct a pulse of current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a present half cycle of the AC power source, and to allow the MOS-gated transistors to conduct at least one other pulse of current through the gate terminal after the firing time during the present half cycle.

A network is disclosed of a plurality of outdoor lighting units. Each lighting unit comprises a light fixture, for example a LED lamp; a power generating means, such as a solar panel or a wind turbine; and a storage means for electric energy, for example a battery.

The energy storage means of neighboring lighting units are connected by a conductor. An imbalance in power generation or power consumption results in a balancing current through the conductor. The balancing current equalizes the charge levels of the energy storage means in the system.

In an embodiment the conductor comprises a single core wire and ground.

A presentation system for a celebration of an individual comprising: a frame; a lighting system disposed along an inner edge of a perimeter of the frame; a fabric removably attached to the frame disposed outwardly from the lighting system adapted to be illuminated by the lighting system; an image included on the fabric associated with aspects of a subject of the celebration of the individual; and, a memorial container disposed in front of the fabric wherein the image and the memorial container cooperate to form a composite image when viewed by an audience.

A presentation system for a celebration of an individual comprising: a frame; a lighting system disposed along an inner edge of a perimeter of the frame; a fabric removably attached to the frame disposed outwardly from the lighting system adapted to be illuminated by the lighting system; an image included on the fabric associated with aspects of a subject of the celebration of the individual; and, a memorial container disposed in front of the fabric wherein the image and the memorial container cooperate to form a composite image when viewed by an audience.

A wireless lighting control system is provided to create a lighting pattern by remotely controlling a plurality of lighting devices according to groups, thereby improving a lighting effect. The wireless lighting control system includes a first lighting device electrically connected with a first smart device to act as a master, and a plurality of second lighting devices electrically connected with a plurality of second smart devices to act as slaves, respectively. If a group for lighting control and control pattern information according to groups are selected from the first smart device, the first lighting device transmits the control pattern information according to the groups to the second lighting devices through a wireless communication scheme. At least one of lighting units of the second lighting devices and display units of the second smart devices is controlled based on the control pattern information according to the groups.

Solar-powered lighting devices are described, the solar-powered lighting devices including a housing and an electronic cord coupled to the housing. The housing may include a first section coupled to a second section the first section including a solar panel coupled to an outer surface. The lighting devices may also include a rechargeable battery, a microprocessor, and a user interface to receive user input and transmit the user input to the microprocessor. The electronic cord may be flexible and includes at least one light-emitting diode, wherein the microprocessor is configured to control at least one operating mode of the LED of the electronic cord based on the user input.

An electronic driver circuit for LEDs and LASERs is provided for use in time-of-flight applications featuring a high efficiency of energy-conversion and a high precision of distance-measurements based on a dual conversion circuit. A voltage to voltage DC-DC conversion is hereby merged with a DC-voltage to pulsed-current booster, this booster operating at a time-of-flight modulation frequency. At the start of a new measurement cycle, the PWM signal for driving the DC-DC conversion is updated in response to currents observed during previous illumination periods.

Power consumption in a start-up circuit for a LED-based light bulb may be reduced by digitally switching a transistor of the start-up circuit coupled to the input voltage. When the transistor is digitally switched between on and off, a reduced amount of power is dissipated by the transistor, because it may not enter a saturation region of operation where the resistance of the transistor between drain and source terminals increases. The transistor may be coupled to a voltage regulator for generating one or more output voltages, including a supply voltage for a host controller IC. The transistor may be switched on and off by a digital signal generated by logic circuitry, which may decide to switch the transistor on and off based on a voltage level at an output of the voltage regulator.

A light source lighting circuit comprises a first lighting circuit for receiving current from the electric power supply line and supplying drive current to a first light source and a second lighting circuit for receiving the current from the electric power supply line and supplying drive current to a second light source. When a state of the drive current flowing to the first light source shows an abnormality, or when state of the drive current flowing to the second light source shows an abnormality, the first lighting circuit stops operation. When a state of the drive current flowing to the second light source shows an abnormality, or when a state of the drive current flowing to the first light source shows an abnormality, the second lighting circuit stops operation.