A cap with an illuminated plastic bill assembly. An illumination assembly provides power and controls for a light source that is used to illuminate the edge or surface of a plastic cap bill. The light passes into and through the plastic cap bill, causing the plastic cap bill to light up and glow in a variety of ways. The plastic bill can also be further decorated in various ways to allow for unique designs to light up and stand out. A cap crown portion provides the foundation to which the illumination assembly and plastic cap bill can be connected to through connection means. All of the listed components combined provides an assembly for a cap with an illuminated plastic bill.

The present disclosure is directed at a method and apparatus for providing a network connected low voltage lighting system. In one embodiment, the disclosure may be seen as an Internet of Things (IoT) network connected low voltage lighting system.

A semi-wireless electric switch system controls power to electrical fixtures by multiplexing to remote solid state relays installed in the wiring junction of the fixtures. A mobile application is provided which may be downloaded and installed on the user's smartphone, tablet, laptop, or other electronic device. The application may be used to control the switch system. Wall switches are replaced by small flat-screen visual displays with touchscreen capability, which enable an installation technician to install additional lights, wall outlets, and other fixtures using existing wiring. Each relay has a preprogrammed three-digit code prefix, and receives and executes a simple digital command to turn on or turn off power to the fixture through the existing wiring.

A lamp device with power outage sensing abilities to detect when a primary power source is interrupted and to energize primary LEDs when primary power source is ON, and to energize backup LEDs when the primary power source is OFF. The power outage sensing circuit may also detect a light switch condition allowing for greater efficiency in emergency power supply usage. A battery charging system may provide battery thermal protection and multiple charge rates to improve battery charging as a function of the temperature in the lighting device.

A modular light control device and a dimming control system are disclosed. The modular light control device comprises a power conversion module, an output module and a control module. The power conversion module has a conversion circuit and a first recognition unit. The conversion circuit receives a power source and converts the power source into a power signal. The output module has an output circuit and a second recognition unit. When the control module is electrically connected with the power conversion module and the output module, the control module distinguishes configurations of the power conversion module and the output module through the first recognition unit and the second recognition unit, respectively, and outputs a control signal according to the configuration of the output module, and the output circuit outputs a driving signal to drive a lamp according to the power signal and the control signal.

Imitation candle devices and systems with enhanced features enable simulation of a realistic candle flame using multiple angled light sources that illuminate a surface area of a movable imitation flame element in a controlled manner. In some implementations, the imitation candle devices further include a color detection module that adjust the color of the imitation candle device based on a sensed color of the surface a surface that the candle rests upon.

A driver device (24) for driving a load (18), in particular a light unit comprising one or more LED's is presented. The driver device comprises input terminals (20, 22) for connecting the driver device to an external electrical power supply (12) and for receiving an input voltage (V10). The driver device further comprises a power converter unit (26) connected to the input terminals for converting the input voltage to a drive voltage (V20) and/or a drive current (120) for powering the load and a control unit (28) connected to the power converter unit for controlling an electrical power provided by the power converter unit to the load. An input device (30) is connected to the control unit for setting a power level of the electrical power provided by the power converter unit to the load, and a memory device (36) is associated to the control unit, wherein the control unit is adapted to determine a level of the electrical power that can be drawn from the input terminals and to store the determined level of the electrical power in the memory device.

This invention relates to an illumination standard calculation method for a tunnel middle section based on safe visual recognition: (a) Setting the light environment of the tunnel middle section; (b) Placing a target object in the tunnel middle section; (c) Making a driver drive a motor vehicle at different speeds toward the target object, and measuring the visual recognition distances D required by the driver to visually discover the target object at different speeds; (d) Resetting the average brightness L of the tunnel middle section and repeating the steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness values L; (e) Using the S model to fit the data of the plurality of sets of visual recognition distances D and brightness values L to obtain the formula of the relational model of D and L to be L=0.683/(5.575-In(D)); (f) Substituting a safe stopping sight distance D.sub.0 corresponding to a maximum speed limit of the tunnel into the model formula to obtain the dynamic minimum brightness value L.sub.0 required for the tunnel middle section under this tunnel light environment. The method improves the accuracy of safety evaluation of the tunnel middle section brightness, and the method is simple and convenient, and provides a reference basis for the road traffic safety research. The invention also provides a system for implementing this method.

A method (and system) is for monitoring a lighting system. Physical location information is received in respect of each lighting unit of the system. Supply voltage information is also received in respect of each lighting unit. Based on the physical location of each lighting unit and the supply voltage information, power network information is derived which identifies cable routes between the lighting units and the locations of lighting cabinets along the cable routes.

The invention describes an LED lighting system (1) comprising a wireless communication arrangement (11, 12) for wireless transfer of signals (D.sub.10.sub._.sub.11, D.sub.11.sub._.sub.12, D.sub.4.sub._.sub.12, D.sub.5.sub._.sub.12) between devices (10, 11, 12, 4, 5) of the LED lighting system (1); at least one LED lamp (10) connectable to a mains power supply (2), which LED lamp (10) comprises a driver arrangement (100) with a control unit (102) for controlling the LED lamp (10) according to a received signal (D.sub.10.sub._.sub.11); a phase-cut detector (103A, 103B, 103C) realized to detect a phase-cut input (V.sub.cut) to the LED lamp (10); and a protection circuit (106) realized to prevent operation of the LED lamp (10) with the phase-cut input (V.sub.cut) if the phase-cut angle of the phase-cut input (V.sub.cut) exceeds a critical threshold, wherein said protection circuit (106) is adapted to prevent an exposure of the LED lamp to the phase-cut input. The invention further describes an LED lamp (10) comprising a driver arrangement (100); and a method of controlling an LED lighting system (1).