Abstract: The present invention relates to a lamp tube suitable for a desk lamp. The lamp tube includes a lamp cover, a light-emitting module, a base, a power-storage element and a power transmission module. The lamp tube is half-cylindrical and has a inner surface and a containing recess. The inner surface is capable of being fixed with the light-emitting module and the containing recess is capable of containing the power-storage element. The power transmission module is electrically connected to the power-storage element and the light-emitting module to transmit the power in the power-storage element to the light-emitting module. The present invention is also relates to a desk lamp having the lamp tube.

Abstract: A solar panel curtain including a plurality of sunshield panels disposed in parallel, an electric energy storage device electrically connected to the sunshield panels, an orientation device connected to the sunshield panels and electrically connected to the electric energy storage device, and a switch device is provided. Each sunshield panel includes plural solar panels locked to each other. The electric energy storage device receives and stores the electric energy generated by the sunshield panels. The orientation device orients the sunshield panels, wherein power is supplied to the orientation device by the electric energy storage device or an external power source. The switch device is electrically connected to the orientation device for turning on or off the orientation device. The solar panel curtain may further include a photo detector device and a knob device such that the sunshield panels can be either automatically oriented or manually operated through the knob device.

Abstract: A light-emitting device of a light-emitting diode (LED) and a manufacture method thereof are provided. The light-emitting device includes a post-like metal material, a printed circuit board, conductors, insulators, light-emitting diodes, wires, and an encapsulating material. The light-emitting device has through holes, in which conductors are disposed and surrounded with the insulators. One end of each conductor is connected to the printed circuit board to form a composite structure heat-dissipation substrate. The light-emitting diodes are disposed on the post-like metal material, connected to the conductors via the wires, and encapsulated by the encapsulating material. Furthermore, the light-emitting diodes, the wires, and the encapsulating material can be combined into a light-emitting unit. Moreover, red, blue, and green light-emitting diodes can be combined and the color of output light thereof can be adjusted by controlling the input signal.