Abstract: Provided is a traffic communication network that includes a signaling system including a plurality of light signaling devices, and a controller configured to wirelessly control the plurality of light signaling devices; and a remote control system in wireless communication with the controller and configured to control the controller

Abstract: Provided is a traffic communication network that includes a signaling system having a plurality of light signaling devices, a controller disposed at at least one traffic intersection, and configured to wirelessly control the plurality of light signaling devices. A remote control system is also provided to wirelessly transmit commands to the controller and directly to the plurality of light signaling devices.

Abstract: A dimmable LED lamp assembly includes a power supply configured to receive an input power signal and produce a DC lamp current, a LED lamp coupled to the DC lamp current and configured to produce an amount of light corresponding to an amount of the DC lamp current, and a dimming controller coupled to the power supply and configured to adjust the amount of DC lamp current. The dimming controller is coupled to the input power signal and is further configured to determine a required dimming level based on the input power signal and to adjust the amount of DC lamp current such that the amount of light produced by the LED lamp corresponds to the determined required dimming level.

Abstract: A traffic lamp and a method of controlling the traffic lamp based on a power signal are provided. The traffic lamp can include a controller and a light emitting element When a plurality of light emitting elements is included in the traffic lamp, each light emitting element is coupled with a separate controller. Each controller can be configured to include a predetermined light emitting timing sequence for the corresponding light emitting element. When the power signal is supplied to the traffic lamp, each controller determines a power signal characteristic such as a frequency or a period of the power signal and controls a light output of the light emitting element: based on the power signal characteristic and the light emitting timing sequence. A plurality of light emitting elements can be synchronized using the power signal applied to the traffic lamp.

Abstract: An LED lamp assembly includes a power supply configured to receive an input power signal and provide a DC lamp current, a dimming controller coupled to the power supply and configured to adjust the DC lamp current, and an LED lamp coupled to the DC lamp current. The dimming controller is configured to determine if full brightness or dimmed brightness is required based at least in part on the input power signal. The DC lamp current is maintained at a first level when full brightness is required and at a second level when dimmed brightness is required.

Abstract: A traffic lamp and a method of controlling the traffic lamp based on a power signal are provided. The traffic lamp can include a controller and a light emitting element. When a plurality of light emitting elements is included in the traffic lamp, each light emitting element is coupled with a separate controller. Each controller can be configured to include a predetermined light emitting timing sequence for the corresponding light emitting element. When the power signal is supplied to the traffic lamp, each controller determines a power signal characteristic such as a frequency or a period of the power signal and controls a light output of the light emitting element based on the power signal characteristic and the light emitting timing sequence. A plurality of light emitting elements can be synchronized using the power signal applied to the traffic lamp.

Abstract: A dimmable LED lamp assembly includes a power supply configured to receive an input power signal and produce a DC lamp current, a LED lamp coupled to the DC lamp current and configured to produce an amount of light corresponding to an amount of the DC lamp current, and a dimming controller coupled to the power supply and configured to adjust the amount of DC lamp current. The dimming controller is coupled to the input power signal and is further configured to determine a required dimming level based on the input power signal and to adjust the amount of DC lamp current such that the amount of light produced by the LED lamp corresponds to the determined required dimming level.