Please note Products containing circuit boards and capacitive electronic components cannot be used, such as bedside clip fans, micro fans, small ceiling fans, LED energy-saving lamps, microwave ovens, induction cookers, light wave cookers, washing machines, rice cookers, fish tank water pumps, brushless synchronous motors, etc. DescriptionSafety electronic voltage regulatorSimple appearance15A current overload protection switchLED display, the boost value and the drop value are clearly visiblePC/PP flame retardant material shellThicker power cord is safer with high temperature resistanceStepless speed regulation as you likeVoltage and temperature, light and speedspecificationProduct name: Single-phase electronic voltage regulatorProduct model ST-BTA41-A (button type)Input voltage: AC220VInput voltage: 0-220V adjustable (Voltmeter does not work when the output voltage is lower than 5V)Peak power: 4000W (load maximum power 2000WVoltage regulation range: 0-220V steplessly adjustable (under load condition), step down to 0V, step up from 10VRated current: 9VPeak current: 18AProduct features: zero lag, zero delay, with peak voltage absorption circuit, effective protection of high-power thyristor anti-surge, anti-spike, RC absorption multiple protection Product name: SCR electronic voltage regulator Product model: ST-BTA41-Black (Black knob model without display) Input voltage: AC220V Output voltage: 0-220V adjustable Peak power: 4000W (maximum load power 200W) Voltage regulation range: 0-220V steplessly adjustable (under load conditions), step down to 0V, step up from 10V Rated current: 9A Peak current: 18A Product features: zero lag, zero delay, with peak voltage absorption circuit, effective protection of high-power thyristor anti-surge, anti-spike, RC absorption multiple protection Product size: length 10*width 10*height 5cm Use attention 1. When the machine is empty, the measured output voltage is a virtual voltage, and a load of more than 20W must be connected to measure the correct output voltage. 2. Input AC power, the output is also AC power, not DC power 3. The 4000W mentioned above refers to the limit power when working in a resistive load. The inductive load is 1/3 of the resistive load. The resistive load refers to the tungsten filament lamp, heating wire, etc., and the inductive load refers to the series motor. Etc., use circuit board electronic products with caution Package Included