Abstract: A foldable electric bicycle includes a foldable body, a first sensing object, a motor, a motor controller, and a first sensor. The foldable body includes a first frame, a second frame, and a latch. The first frame is foldably connected to the second frame to make the first frame operably unfolded to a safe state or folded to a folded state relative to the second frame. The first sensing object is disposed on the latch. The latch is disposed on the second frame. The first sensor is disposed on the first frame. When the first sensor cannot sense the first sensing object, the motor controller turns off the motor.

Abstract: A surge protection system includes a receptacle body, at least one power output jack, a power obtaining device, at least one surge protection module, a microcontroller unit, and a surge detection circuit. The at least one surge protection module includes a housing, a memory element, and a surge protection circuit that includes a surge absorption element and a thermal fuse connected in series and parallel. The surge absorption element absorbs a surge inputted from an external power supply, and the memory element records a number of surges carried by the surge absorption element. When the surge enters the surge protection system from the external power supply, the surge absorption element absorbs the surge, and the surge detection circuit outputs a signal to the microcontroller unit that writes the number of surges carried by the surge absorption element into the memory element.

Abstract: A isolated-type hybrid solar photovoltaic system contains: a solar cell having a peak power value of the solar cell, a battery having a power capacity and a discharge depth, a controller, at least one independent inverter, at least one relay, at least one AC load, at least one load measuring element, at least one load transmission wire, a AC grid power, and a microprocessor. The controller is electrically connected with the solar cell, the battery, the microprocessor, and the at least one independent inverter. The at least one relay has a first connecting point electrically connected with the at least one AC load and has two second connecting points electrically connected with the AC grid power and AC output end of the at least one independent inverter. The at least one relay further has a driving connection point electrically connected with an output end of the microprocessor.

Abstract: The present invention is related to the apparatus for driving the light emitting devices with different colors. The input powers of the light emitting devices are measured and controlled by a feedback control system to maintain constant, and by setting different power inputs to the different light emitting devices different stable colors are produced.

Abstract: A figure exhibiting method is disclosed in this invention. The figure exhibiting method includes providing a figure and at least one light source. A number of color areas are included in the figure, inga first color area. The light source projects a variety of color lights onto the figure according to a program. The lights include a first light, which is the complementary color of the first color area in order to create a dark visual effect. Alternatively, a color light that is able to create a reflection of color from the first color area can be projected onto the figure, making the color of the area appear differently than it would under sunlight. A figure exhibiting device is also disclosed in this invention. The figure exhibiting device includes a light guiding plate, a transparent plate, a figure and at least one light source. The figure is clipped between the light guiding plate and the transparent plate. The figure includes a number of color areas, particularly, a first color area.

Abstract: The present invention is related to the apparatus for driving the light emitting devices with different colors. The input powers of the light emitting devices are measured and controlled by a feedback control system to maintain constant, and by setting different power inputs to the different light emitting devices different stable colors are produced.

Abstract: The present invention provides a constant power driving-and-controlling method for lighting elements so as to stably drive solid lighting elements. Measuring the input power of lighting elements by a power measuring device and then controlling the input power of the lighting elements by a feedback controller to stabilize the input power of the lighting elements, the effects of environment temperature and the difference of the electrical characteristics of the lighting elements on the input power can be eliminated.

Abstract: A method for adjusting a color lighting device, comprising the following steps: (a) selecting in a user interface to generate a control instruction having various colors with different mixing ratios; (b) transmitting the control instruction to the color lighting device, and storing the control instruction in a memory of the color lighting device; and (c) adjustably emitting color lighting according to the control instruction of step (b). The present invention provides the users the capability of adjusting the color lighting device, thereby furnishing atmosphere of enjoyment to the life of the users.

Abstract: A light-emitting diode (LED) device has a shade, an active heat-dissipation device and an LED module. The shade has a cavity. The active heat-dissipation device is mounted in the cavity in the shade and has a cooling board, an evaporator, a condenser, a compressor, an expansion valve and a refrigerant. The evaporator, condenser, compressor and expansion valve connect to each other to form a loop. The refrigerant is set in the loop. The LED module is mounted to the active heat-dissipation device and has at least one LED. The active heat-dissipation device dissipates the heat from the LED and even lowers the temperature of the LED under ambient temperature.

Abstract: A solar photo-voltaic panel light structure includes a sectioned pole including a lamp formed on a upper end thereof and a foot formed on a lower end thereof to facilitate erecting the pole in the ground, a solar photo-voltaic panel battery adjustably connected to the pole and a control box electrically connected to the solar photo-voltaic panel battery so that the solar photo-voltaic panel battery is able to provide electricity.

Abstract: A light-emitting diode (LED) device has a shade, an active heat-dissipation device and an LED module. The shade has a cavity. The active heat-dissipation device is mounted in the cavity in the shade and has a cooling board, an evaporator, a condenser, a compressor, an expansion valve and a refrigerant. The evaporator, condenser, compressor and expansion valve connect to each other to form a loop. The refrigerant is set in the loop. The LED module is mounted to the active heat-dissipation device and has at least one LED.