4000W AC 110v Motor Speed Controller Angle Grinder, Variable Fan Speed Controller, for Electric Motors Variable Speed Control Switch Electronic Voltage Regulation

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• FULL-SCENE MULTIFUNCTIONAL APPLICATION: This voltage controller supports four main functions of speed/voltage/temperature/dimming, covering 30+ types of equipment such as fans, brushed motors, power tools, electric stoves, ovens, tungsten lamps, etc. It's compatible with resistive/inductive/capacitive loads (2000W/500W/300W thresholds) to meet the dual needs of industry and household.
• HIGH SAFETY DESIGN: AC motor speed controller adopts ABS flame retardant case, high temperature resistance, anti-deformation and cracking, insulating material to protect the safety of electricity; Built-in 15A overload protection function can resist and voltage spike, when the current is more than 15A, this variable speed controller equipment will automatically cut off the power supply.
• LED VISUALISATION DISPLAY: The electronic speed regulator is equipped with a clear LED digital voltage display, the numbers are clear and eye-catching, the precise voltage is clear at a glance, and equipped with an indicator light, easy to monitor the equipment.
• PRECISION REGULATOR KNOB: The voltage regulator is equipped with a high-precision potentiometer regulator knob, to achieve stepless continuous adjustment, rapid response without delay, simple and stable operation, to provide you with a convenient and safe power supply experience.
• HOW TO USE: Before use, adjust the regulator knob to ‘0’ position, connect the product power cord to AC 110V-120V socket, the output voltmeter shows the voltage, (the voltage shown when no load is virtual voltage, you must connect the load in order to measure the correct voltage), connect the power equipment to the voltmeter, slowly adjust the knob, and then turn the voltage up in clockwise, and against the clock to turn the voltage up.