Abstract: A switch module with an automatic switching function and a method for automatically switching the switch module according to the load, wherein a first comparator and a second comparator are configured to automatically determine whether the load is light or heavy according to the voltage divided by a first resistor and a second resistor and the voltage of a source resistor, thereby generating a voltage control signal. A plurality of transistors are configured to receive a gate input signal according to the voltage control signal, thereby selectively bringing a GaN transistor or a MOSFET transistor in a conducting state. In this way, the output quality and efficiency of the power supply at light and heavy loads can be improved according to the characteristics of different transistors.

Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

Abstract: A method for preparing a conductive film includes: (a) providing a mixture that includes a conductive material and a solvent, the conductive material including polyethylenedioxythiophene and polystyrene sulfonate; (b) filtering the mixture to obtain a filtrate; (c) heating and stirring the filtrate to form a film-forming solution; (d) coating the film-forming solution onto a substrate to form a crude film on the substrate; and (e) bringing the crude film into contact with methanesulfonic acid so as to form the conductive film on the substrate.

Abstract: The present invention provides a light source adjusting and controlling switch device, which comprises a control circuit, and a capacitance-type touch pad mounted on the surface of a lamp and connected to the control circuit. The capacitance-type touch pad has a plurality detection element and is electrically connected with a touch sensor of the control circuit. When a user touches the capacitance-type touch pad with a finger, a capacitance will be produced on the capacitance-type touch pad, and the plurality of detection element can sense the position of the finger and produce a corresponding capacitance variable amount signal. After the touch sensor receives the signal, a microprocessor of the control circuit will operate the switch on/off, the brightness and color to a connected light emitting device immediately.