Electronic regulator AC220V 8000W high power SCR speed controller steering motor 1. It can easily adjust the output voltage on a 0-scale (non-linear) to power the electrical appliance. 2. Designed with a large and thick heat sink which would improve heat dissipation. 3. This voltage regulator is adjustable by button, which is much more stable than potentiometer. 4. The voltage regulator has a wave voltage absorbing circuit and effectively protects the large silicone controlled rectifier energy, longer service life and more durable. 5. Can be used as a power supply for large electrical appliances with power less than 8000W, sufficient for household appliances or small factory. Specification: Features: Can easily adjust the output voltage on a 0-scale (non-linear) to power the electrical appliance. Designed with a large and thick heatsink that would improve heat dissipation. This voltage regulator is adjusted by button, which is much more stable than potentiometer. The voltage regulator has a wave voltage absorbing circuit and effectively protects the large silicone controlled rectifier energy, longer service life and more durable. Can be used as a power supply for large electrical appliances with power less than 8000W, sufficient for household appliances or small factory. It can be widely used as heat controller on electric furnaces, water heaters, light dimmer on lamps, speed controller on small motors or temperature controller on electric soldering iron etc. Specification: Voltage: AC 220V Maximum power: 8000W (instantaneous power limit for impedance load; For long time use, 4000w or less is recommended) Voltage regulation: 0- (non-linear) (0,30,35,40...100) Controller size: approx. 9.7*5.7*4.3cm/3.8*2.2*1.7 inch Panel size: approx. 7.5*6*1cm/3*2.4*0.4in Cable length: approx. 30.8cm/12.1in Fix screw hole spacing on panel: approx. 6*4.5cm/ 2.4*1.8 inch Weight: Approx. 195g / 6.9oz Package List: 1 x SCR Controller 1 x ABS Panel 1 x Sticker Panel 1 x Cable Note: 1. AC input, AC output, for step-down only; The voltage can only be adjusted when connected to the load; Mainly used for resistive load. 2. It cannot replace electric bicycle charger or drive electrical appliances using switch power supply (such as 110V TV, speaker, refrigerator, air conditioning rice cooker with computer) and cannot drive induction cooker, energy-saving lamp.