An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal.

Provided is an LED retrofit lamp interfacing with a high intensity discharge (HID) ballast that includes a lighting source having a plurality of light emitting diodes (LEDs), one or more heat sink components dissipating heat generated by the LEDs, and an LED driver configured to operate the LEDs. The LED retrofit lamp is disposed within an HID housing and the HID ballast is electrically connected with the LED driver, and supplies power to the LED driver for operating the LEDs.

A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base.

A portable cylindrical light box, including a strut, an advertising fabric, a fixed profile and a transparent film. An inner wall of the advertising fabric is sewn with a first silicone strip. An outer wall of the first silicone strip abuts the transparent film. A second silicone strip is adhered to the bending portion of an outer wall of the transparent film. The groove is provided on the strut. An outer wall of the fixed profile is fixed with a light bar including an adhesive layer, a soft base layer adhesively connected to the fixed profile by the adhesive layer, and an LED bead SMD fixed on the soft base layer. The upper and lower ends of the fixed profile are respectively mounted with a bottom plate assembly and a cover plate assembly fixedly connected to the upper end of the fixed profile by screws.

A light source may comprise a thermally conductive frame comprising a base and a faceted portion extending from the base. The faceted portion may comprise a plurality of facets spaced circumferentially thereabout. Additionally, a hollow passageway may extend through the base and axially through the faceted portion. A plurality of LED chips may be arranged on the plurality of facets to provide an emission of light in an arc of 360 degrees.

A light bulb assembly comprising a base, a helical body portion, a LED assembly and an electrical drive. The base includes a cap electrically connectable to a power source. The helical body portion has an outer cylindrical upstanding portion. The helical body portion extends from the base upwardly and has a helical groove disposed along an outer surface. The LED assembly has a strip including a plurality of LED elements that are in a spaced apart orientation. The strip is positionable in the helical groove of the helical body portion. The electrical drive is configured to supply power from the power source to the LED elements. The electrical drive is positioned within the cavity created by at least one of the base and the helical body portion.

A LED lamp includes an at least partially optically transmissive enclosure and a base connected to the enclosure. A plurality of LEDs are located in the enclosure and are operable to emit light when energized through an electrical path from the base. An optical interface is positioned in the enclosure for electrically isolating a live electrical component and for receiving at least a portion of the light. The optical interface includes a light modifying property for modifying a characteristic of the portion of the light.

A semiconductor light source and driving aid system for a motor vehicle comprising a semiconductor light source. The semiconductor light source includes a plurality of electroluminescent rods of submillimetric dimensions. At least certain rods are electrically interconnected in a first assembly dedicated to an emission of a light beam at a first wavelength, and other rods are electrically interconnected in a second assembly dedicated to an emission of a light beam at a second wavelength different from the first wavelength, the first and the second assemblies forming two selectively activable emission areas.

A safety dance pole with a light display includes an opaque tube member with an programmable light display member configured for placement inside of the opaque tube member. A plurality of circumferentially arranged apertures extending through an outer surface of the tube member to a cavity within include light pipes configured to transmit light from the light display member past the outer surface of the opaque tube member. The dance pole includes a programmable controller which may be operated by wired or wireless means. The dance pole may be rotatable or suspendable. The light controller and light display may be powered by household current or one or more batteries.

A rectangular wide-beam flashlight that utilizes a plurality of LEDs positioned in specifically formed optical elements to generate a uniform, rectangular beam pattern configured to substantially illuminate one or more walls in a room. The flashlight uses a radial array of LEDs that are disposed at or within optical elements or cavities configured to combine the output of the LEDs to form a substantially uniform and seamless, high-aspect ratio or wide rectangular beam for adequately illuminating one or more walls in a room.