ITEM NAME:1Pcs Mini DC Motor PWM Speed Controller 5V-35V Speed Control Switch LED Dimmer z Descriptio n Specifications: (1) Operating Voltage: DC 5V-35V (2) Control Power: 90W(Maximum) (3) Static Current: 0.015A (Standby) (4)PWM Duty Cycle: 1%-100% (5)PWM Frequency: 10KHz Case Size: 30MM * Width 24MM (Excluding Handle) Total Height: 15MM Package Included: 1 * PWM Speed Controller High quality buy, happy buyï ¼ 1Pcs Mini DC Motor PWM Speed Controller 5V-35V Speed Control Switch LED Dimmer.(4)PWM Duty Cycle: 1%-100%. (5)PWM Frequency: 10KHz. Case Size: 30MM Width 24MM (Excluding Handle). We'd like to settle any problem in a friendly manner. We want to make sure you are happy with our item.