Abstract: A voltage adaptable driving signal converter is disclosed, including a rectifying device, a pre-stage energy storing device, a DC-DC conversion device, a post-stage energy storing device, a control conversion device and a switch control device. The rectifying device, the pre-stage energy storing device, the DC-DC conversion device and the post-stage energy storing device are sequentially connected. The pre-stage energy storing device is coupled to a positive electrode of a power supply or to a grounding electrode. The post-stage energy storing device is coupled to and adapted to supply electrical power to a load to be driven. The control conversion device is coupled to the control line and the switch control device respectively. The switch control device is coupled to the post-stage energy storing device and the load respectively.

Abstract: A method of wireless transmission of electricity is disclosed, including: inputting a first AC electricity into a transmitting terminal intermittently, and generating, by a microcontroller unit, different control signals according to the intermittently input first AC electricity; modulating the control signals and a first constant-voltage DC electricity to an electrical signal transmitted through a wire; performing a signal-electricity separation process to the electrical signal, to separate the control signals from the electrical signal; generating, by a signal generator, a near field inductive signal, and modulating the near field inductive signal and the control signals, to generate a signal to be sent; and amplifying the power of the signal to be sent, and sending, by a transmitting coil, the power-amplified signal to be sent in the form of an electromagnetic wave.

Abstract: A method of wireless transmission of electricity is disclosed, including: inputting a first AC electricity into a transmitting terminal intermittently, and generating, by a microcontroller unit, different control signals according to the intermittently input first AC electricity; modulating the control signals and a first constant-voltage DC electricity to an electrical signal transmitted through a wire; performing a signal-electricity separation process to the electrical signal, to separate the control signals from the electrical signal; generating, by a signal generator, a near field inductive signal, and modulating the near field inductive signal and the control signals, to generate a signal to be sent; and amplifying the power of the signal to be sent, and sending, by a transmitting coil, the power-amplified signal to be sent in the form of an electromagnetic wave.

Abstract: An electromagnetic massage device for bathtub or pool includes an integrated holder for being fixed in a mounting hole; a lock nut engaging a thread on a wall on the holder, that fastens the holder to the surface of the wall; a rubber case with a top portion that bulges outward and a bottom portion with a rim which fits to the base plate of the concave cavity of the holder to seal the opening of the upper end of the holder; a conductive coil provided in the ring cavity of the holder and encapsulated by an upper magnetic conductive cover, a lower magnetic conductive cover and a magnetic conductive shell; and a beating head and an armature fastened together and mounted in the guide cavity of the holder to slide in the guide cavity under the action of an electromagnetic field.

Abstract: An electromagnetic massage device for bathtub or pool includes an integrated holder for being fixed in a mounting hole; a lock nut engaging a thread on a wall on the holder, that fastens the holder to the surface of the wall; a rubber case with a top portion that bulges outward and a bottom portion with a rim which fits to the base plate of the concave cavity of the holder to seal the opening of the upper end of the holder; a conductive coil provided in the ring cavity of the holder and encapsulated by an upper magnetic conductive cover, a lower magnetic conductive cover and a magnetic conductive shell; and a beating head and an armature fastened together and mounted in the guide cavity of the holder to slide in the guide cavity under the action of an electromagnetic field.

Abstract: An LED underwater lamp comprises a housing (1) and an LED lamp body (2), wherein the housing (1) is fixed in a mounting hole of a mounting plate (20), an opening is provided at one end of the housing (1), the LED lamp body (2) is inserted through the opening and fastened within the housing (1), an inner water-proof sealing ring (3) is disposed between the LED lamp body (2) and the opening of the housing (1), an LED bulb (4) is disposed within the LED lamp body (1) situated at the opening of the housing (1), and a power line (5) extending to outside through the housing (1) is detachably connected to the other end of the LED lamp body (2).

Abstract: A jet assembly has internals rotatably and releaseably fit to a jet body, such as that for a spa. The internals have a barrel housing, a rotor and a barrel inlet. The internals as screwed into the jet body. A first threaded portion outside the barrel threadably engages second threaded portion inside the jet body wherein the internals have delimited rotation therein to align and misalign the barrel inlet from a body inlet on the jet body to control flow on and off respectively. The threaded portion within the jet body can be a locking ring affixed therein by fasteners or integral with the jet body. Rotation can be delimited by a projection on the barrel and a cooperating annular delimiting surface on the locking ring, such as circumferentially-spaced detents.