Abstract: An LED spotlight includes a base and lampshade. The base includes a power connecting portion, a heat dissipating portion and circuit board which are connected to the power connecting portion; and an LED unit disposed at the circuit board for emitting first and second light. The center-to-edge distance of the circuit board is defined as a first distance. The LED unit is separated from the center of the circuit board by a second distance. The second distance equals at least 1/10 of the first distance. The lampshade includes an opaque pipe and convex lens. The pipe has one end connected to the heat dissipating portion and the other end connected to the convex lens. The first light penetrates the convex lens to form a first light-emitting area. The second light reflects off the inner wall of the pipe and penetrates the convex lens to form a second light-emitting area.

Abstract: A latent heat thermal energy storage (LHTES) device for an electric vehicle (EV) comprises a chamber, a plurality of thermal conductivity enhancement units disposed in the chamber, and phase change material (PCM) filled in the chamber, allowing storage of coolness or thermal energy produced when the EV is being charged and retrieval of the coolness or thermal energy when the EV is driven to regulate the temperature of a passenger compartment of the EV. In addition, systems comprising LHTES devices and methods for controlling the same are also introduced.

Abstract: The present invention provides a solar LED (Light Emitting Diode) lamp, comprising a control circuit; a solar panel electrically connected to the control circuit; a rechargeable battery electrically connected to the control circuit; at least one light emitting diode (LED) electrically connected to the control circuit; and a transparent body which is one-piece molded with all of the above electronic elements encased therein. The solar LED lamp according to the present invention can allow the electronic elements therein to be totally segregated from external environment by encasing all of the electronic elements in a one-piece molded transparent body; thereby, the solar LED lamp can be used durably.

Abstract: The thermal management multi-layer film/sheet and hollow articles for the use with secondary battery, supercapacitor and battery pack as thermal management casings or sleeves achieve effective control of the temperature of the operating batteries/supercapacitors. The thermal management multi-layer film/sheet and hollow article structure comprises a laminate of a plurality of alternative metal, plastic, and adhesive layers. And the plastic and adhesive layers comprise of parent phase resin, heat conductive particles, and microencapsule-phase-change-material (MCPCM). The heat conductive particles enhances the thermal conductivity, the MCPCMs absorb heat while the batteries/supercapacitors are in discharging mode.

Abstract: The present invention provides a solar LED (Light Emitting Diode) lamp, comprising a control circuit; a solar panel electrically connected to the control circuit; a rechargeable battery electrically connected to the control circuit; at least one light emitting diode (LED) electrically connected to the control circuit; and a transparent body which is one-piece molded with all of the above electronic elements encased therein. The solar LED lamp according to the present invention can allow the electronic elements therein to be totally segregated from external environment by encasing all of the electronic elements in a one-piece molded transparent body; thereby, the solar LED lamp can be used durably.