Abstract: A vehicle headlamp system includes a lamp device and a control device to control the brightness thereof while in operation. The lamp device includes at least a first light emitting diode unit providing a first color temperature, and at least a second light emitting diode unit providing a second color temperature different from the first color temperature. The control device is coupled to the lamp device for changing the brightness ratio of the second LED unit to the first LED unit and controlling the resulting color temperature of the lamp device.

Abstract: An LED bulb includes a connector for electrically connecting with a power supply, a heat sink disposed on the connector, and an LED mounted the heat sink. The heat sink has a first face and a second face opposite to the first face. The LED is attached on a first face of the base. The heat sink defines a plurality of through tunnels extending through the heat sink from the first face to the second face thereof.

Abstract: A light emitting diode (LED) unit having a lens producing parallel light beams is disclosed. The LED unit comprises an LED; and a lens comprising a light incident face facing the LED, a light emergent face away from the LED, and a light reflecting face between the light incident face and the light emergent face; the light incident face comprises a first light incident face over the LED, and a second light incident face encircling the LED; and the light emergent face comprises a first light emergent face corresponding to the first light incident face, and a second light emergent face corresponding to the second light incident face, wherein the first light emergent face, relative to the first light incident face, is lower than the second light emergent face.

Abstract: An illuminating device comprises a heat dissipating module, a light emitting module arranged on the heat dissipating module, and a holder connected to the heat dissipating module. The heat dissipating module comprises a heat conductive plate and a plurality of fins; the heat conductive plate has a first surface and a second surface opposite to the first surface; the plurality of fins are configured on the first surface and extends along a direction away from the second surface. The light emitting module comprises a base attached to the second surface of the heat dissipating module and a light source; the base has a supporting surface and the light source is arranged on the supporting surface. A distance between the supporting surface and the second surface gradually increases along a direction from one side of the heat conductive plate to the other.

Abstract: An LED (light emitting diode) includes a seat and an LED chip. The seat includes a main body, and a first electrode and a second electrode formed on the main body. The LED chip includes a first semiconductor layer, an annular light-emitting layer encircling the first semiconductor layer, and an annular second semiconductor layer encircling the light-emitting layer. The first electrode electrically connects with the first semiconductor layer, and the second electrode electrically connects with the second semiconductor layer.

Abstract: An exemplary light emitting device includes a base, a pair of leads fixed on the base, a light emitting element mounted on the base and electrically connected to the leads and an encapsulant attached on the base and sealing the light emitting element. The base has a plurality of heat conductive paths formed therein. The heat conductive paths extend from a bottom face to a top face of the base to conduct heat generated by the light emitting element from the top face to the bottom face of the base.

Abstract: An indoor illuminating device includes at least one lamp and a housing. The at least one lamp includes a heat sink and a light emitting portion. The housing includes opposite top wall and bottom wall. The bottom wall defines at least one opening corresponding to the at least one lamp. The heat sink is received in the housing, and the light emitting portion of the at least lamp exposes out of the housing through the at least one opening. The housing further defines a first ventilation opening and a second ventilation opening. The heat sink of the at least one lamp is disposed in an airflow path between the first and second ventilation openings.

Abstract: A light emitting diode chip includes a substrate and an epitaxial layer formed on the substrate. The substrate is made of indium tin oxide (ITO) and has nano hydrogenation of SiC (SiC:H) particles doped therein. The substrate functions as a first electrode for the light emitting diode chip. The epitaxial layer consists of a first conductive type semiconductor material layer, a light-emitting layer and a second conductive type semiconductor material layer. A second electrode is formed on the second conductive type semiconductor material layer.

Abstract: A power generating chair includes a base, a seat, a back, and a power-collecting module. The seat includes a seat housing and a first cushion received in the seat housing. The seat is positioned above the base. The seat housing is supported by the base. The first cushion is made of piezoelectric material and configured for converting mechanical energy to electrical power. The back is connected to a side of the seat. The power-collecting module is electrically connected to the first cushion and configured for storing the electrical power generated by the first cushion.

Abstract: An LED lamp includes a heat sink, a lamp shell and a light module. The heat sink includes a substrate and a plurality of fins. The substrate has a top surface and a bottom surface. The lamp shell is fixed to a periphery of the substrate. The light module is received between the lamp shell and the bottom surface of the substrate of the heat sink. The substrate defines a first through-hole through the top and bottom surfaces thereof to communicate airflow channels between the fins with a space below the bottom surface of the substrate, wherein the light module is received in the space.

Abstract: An LED illumination apparatus includes a shell, a fixing module, and at least one LED module fixed in the shell by the fixing module, wherein the fixing module includes a fastening piece and a tenon fixing respectively the two ends of the at least one LED module. The fastening piece includes a base fixed on the shell and a locking arm connecting to the base, and one end of the at least one LED module is fixed by one free end of the locking arm attached to the base.

Abstract: A writing instrument providing illumination includes a penholder, a pen core, a solid state lighting source module, and a rotating plate. The rotating plate connects to one end of the penholder. The solid state lighting source module is embedded in the rotating plate which can rotate to a specific angle. A battery providing electrical energy to the solid state lighting source module is arranged inside the penholder. When the rotating plate is turned to a position perpendicular to the penholder the solid state lighting source module is turned on and when the rotating plate is turned to a position adjacent to the penholder the solid state lighting source module is turned off.

Abstract: An illumination device includes a cap, a holder fixed to the cap, a housing fixed to the holder, a driving module received in the housing, a light source mounted on the housing and a cover secured on the housing and covering the light source. The cap includes an electrically conductive column and an electrical contact tip. The contact tip is electrically insulative from the column The driving module includes a plate, a plurality of electronic components mounted on the plate, two upper pins extending upwardly from the plate, a lower pin extending downwardly from the plate and a tab extending laterally from the plate. The upper pins extend through the housing into the light source to electrically connect with the light source. The lower pin and the tab separably contact the contact tip and the column, respectively.

Abstract: An illumination device includes a housing defining a hole therethrogh; a plurality of light sources each is a light emitting diode is disposed in the housing; a lamp seat is securely positioned at one side of the housing. The lamp seat comprises a protrusion configured to receive electronic elements therein. The protrusion of the lamp seat is inserted into the hole of the housing.

Abstract: A light emitting diode (LED) bulb includes a lamp seat for connecting the LED bulb to an external power source, a rotatable member rotatably connected to the lamp seat, two holders fixed to the rotatable member and a lamp head pivotally connecting with the holders. The rotatable member is rotatable around a first axis. The lamp head is rotatable around a second axis. The second axis is unparallel to the first axis. Thus, an illumination angle of the lamp head can be adjusted with respect to the lamp seat along two planes. An LED module is attached to the lamp head.

Abstract: A lamp includes a lamp holder, a supporting board and a plurality of light sources. The lamp holder has a holding surface for holding the supporting board. The supporting board has a fixing portion, a first supporting portion and a second supporting portion. The fixing portion is fixed on the holding surface. The first and second supporting portions are adjacent to each other. The first supporting portion has a first supporting surface. The second supporting portion has a second supporting surface oblique to the first supporting surface. The plurality of light sources is arranged respectively on the first and second supporting surfaces.

Abstract: A light-emitting diode lamp includes a lamp shield and light-emitting diode modules mounted in the lamp shield. The lamp shield includes two side bars spaced from each other. The light-emitting diode modules are located between the two side bars and arranged side by side along lengthwise direction of the side bars. Each of the light-emitting diode modules is rotatably mounted on the two side bars.

Abstract: An LED lamp includes a first LED light module and a second LED light module. The first LED light module includes a frame, a beam mounted on the frame, a plurality of LEDs mounted on the frame and a cover fixed to the frame to cover the LEDs. The second LED light module includes a housing, a base mounted on the housing and an LED fixed to the housing. The base of the first LED light module defines two grooves. The base of the second LED light module forms two posts. The two posts can be locked in the two grooves to mount the first LED light module with the second LED light module and complete the electrical connection between the first and second LED light modules.

Abstract: An LED module includes a light bar and a fixing device. The light bar includes a supporting plate and a circuit board mounted on the supporting plate. The circuit board has a plurality of light emitting diodes thereon. The supporting plate includes a first tongue and a second tongue respectively extending from two opposite ends thereof. The fixing device includes a substrate to support the light bar, a fastening piece and a tenon fixing respectively the two ends of the light bar on the substrate. The fastening piece includes a seat fixed on the substrate and a locking arm connecting to the seat. The first tongue of the light bar is embedded in the tenon, and the second tongue of the light bar is received in a space defined between the seat and the locking arm.