【Single Phase Controller】--This ac 220v motor speed controller is a single-phase asynchronous motor speed controller, used for 24V, 36V, 90V DC motors. Input Voltage: AC 110V; Control Motor Power: 0.02W~400W; Output Voltage: DC 24V~90V Designed with small size, this AC motor speed controller swithch is practical, high , with wide rang of speed regulation and low power consumption, can provide you with a superior user experience. Size: 11.2 × 10 × 6cm/4.4 × 3.9 × 2.3in 【Adjustable Speed】-- Our AC motor speed controller is used with single-phase asynchronous motor to realize feedback constant speed and stepless speed regulation. Very easy to install, superior in performance and easy in maintenance. 【 Controller】-- This motor speed controller uses electronic circuit and integrated components, no deformation, not easily damaged, and sturdy for long time service! 【Wide Applications】-- Adjustable AC motor speed controller can be widely used for speed governing device drivers of packaging, printing, electronics, instrument meter, clothing machinery, medical machinery and other industries. ASIN B07QX55Q3F Item Weight 10.9 ounces Manufacturer Keenso Item model number wo81qx7i3y Product Dimensions 7.29 x 3.94 x 2.76 inches