Description: -90W DC 3V-35V Motor PWM Speed Controller Switch LED Dimmer -Operating Voltage: DC 3 V- 35 V; Control Power: 90 W (Max); Quiescent Current: 0.015 A (Standby) -PWM Duty Cycle: 1% -100%; PWM Frequency: 10khz -With high voltage and high current resettable fuse, overcurrent automatic disconnection, cooling off a few seconds after the automatic fuse, almost never have to change a fuse. -Size: 50*25*10mm Package Includes: 1 piece DC PWM speed controller