LIVISN USB Fan Speed Controller Stepless Speed Regulator 5-12V to 2.5-7.5V Multi-stall Air Volume Adjuster Governor Module with Switch

Description: USB fan speed controller.Mute multi-position wind speed regulator.It is suitable for offices, dormitories, bedsides, Chassis,Desk,Workbench etc. Features: 1>.USB fan adjuster; 2>.Strong/weak wind are free to adjust; 3>.USB fan stepless governor; 4>.Knob with switch; Parameters : 1>.Product Name:USB Fan Stepless Governor 2>.Working Voltage:DC 4V-12V 3>.Output Voltage:DC 2.5~8.0V 4>.Rated power: 5W(Do not overload!) 5>.Test temperature: -40~85? 6>.Physical dimension:50*44*18mm The stepless governor output voltage range varies from 2.5 volts to 8.0 volts.The wind speed is set arbitrarily. Turn the knob clockwise to increase the wind speed. Turn counterclockwise to reduce the wind speed, and the knob has a switch function. Micro USB and Male USB are input terminal which used to connect to power supply. Female USB is output which used to connect to fan. Instructions: 1>.Connect fan from Female USB; 2>.Connect power supply from Micro USB or Male USB from mobile phone charger, charging treasure, computer USB, etc. 3>.Adjust the potentiometer to change the wind speed. Note: When using the two-speed adjustment fan, please put the fan in the first gear, otherwise it may not be able to adjust the speed. Package Listing: 1pcs USB Fan Stepless Governor