Abstract: An indicator light circuit configured for a micro-current comprises an indicator light module, a logic controller, and a sampling circuit. The logic controller is configured to compare a sample voltage generated by the micro-current on the sampling circuit with a first preset threshold voltage. When the sample voltage is greater than the first preset threshold voltage, the logic controller outputs a control signal to the indicator light module to drive an indicator light of the indicator light module to be turned on.

Abstract: A constant current output circuit configured for a micro-current comprises a voltage boosting module and a logic controller. An input terminal of the voltage boosting module is connected to a power source, and an output terminal of the logic controller is connected to the input terminal of the voltage boosting module. The logic controller is configured to compare a sample voltage generated by the micro-current on a sampling resistor with a first threshold voltage, and when the sample voltage is less than the first threshold voltage, the logic controller drives the voltage boosting module to boost an output voltage until the sample voltage is increased to be greater than the first threshold voltage.

Abstract: A structure for controlling water passage switching and on-off of an electrical circuit using a single button comprises an operating member, a transmission member, a water passage switching member, and an electrical circuit controlling module. The operating member drives the water passage switching member to rotate through the transmission member to achieve the water passage switching, and the water passage switching member drives the electrical circuit controlling module during a process of the water passage switching.

Abstract: The present disclosure discloses an automatic liquid outlet structure and a beauty massage apparatus, and the automatic liquid outlet structure comprises a rolling massage mechanism, a liquid storage mechanism, and a liquid adsorption mechanism. The liquid adsorption mechanism is disposed between the rolling massage mechanism and the liquid storage mechanism. A first side of the liquid adsorption mechanism is in communication with the liquid storage mechanism, and a second side of the liquid adsorption mechanism is in contact with the rolling massage mechanism. The liquid storage mechanism is configured to hold a liquid. The liquid held in the liquid storage mechanism is configured to be adsorbed into the liquid adsorption mechanism. When the rolling massage mechanism is in a rolling process, the liquid adsorbed in the liquid adsorption mechanism is transferred to the rolling massage mechanism.