Abstract: An electric load control device of a heating unit of a heating blanket comprises an actuating unit; a power supply for supplying power to the device; a microprocessor as a control center of the device for generating at least one pulse signal; the microprocessor being actuated by the actuating unit; and a driving unit; the driving unit receiving the at least one pulse signal from the microprocessor for actuating the heating unit to generate heat to heat the heating blanket; the driving unit serving to actuate the heating unit. An actuation time period of the heating unit is controlled by the pulses from the driving unit. In the driving unit, the negative parts of the pulses from the microprocessor are converted into positive pulses so that all the pulses become positive pulses; after the pulses pass through the driving unit, only selective positive pulses are passed.

Abstract: A perfume-dispensing adapter for use in a bubble generator for SPA is constructed to include a casing connected between a compressed air source and an air nozzle panel being put in a bathtub for guiding compressed air from the compressed air source into the air nozzle panel for producing air bubbles in the bathtub, a valve supported on a spring member in the casing and adapted to close the casing when the casing receiving no compressed air or to open the casing when the casing receiving compressed air, and a perfume dispenser mounted in the casing and adapted to emit a smell into compressed air passing through the casing.

Abstract: An electric heating blanket control circuit assembly is constructed to include an electric heater, a sensor adapted for detecting the temperature level of the electric heater, a controller, the controller having a monitoring circuit adapted for monitoring normal functioning of the sensor and the electric heater and a main control circuit adapted controlling the operation of the electric heater subject to the detection result of the sensor to keep the temperature of the electric heater to be maintained within a limited range, and a power adapter adapted for providing low voltage DC to the electric heater, the sensor, and the controller for working.

Abstract: A massaging bath mat, which includes a bath mat for mounting in the inside wall of a bathtub under the water, the bath mat being formed of a series of bath mat units each having a plurality of perforated flexible tubes connected in parallel, and a pump unit coupled to the bath mat and controlled to pump air to the perforated flexible tubes of the bath mat for producing air bubbles in the water in the bathtub to massaging the user.