This item has new two-way silicon controlled rectifier and the current can be up to 80A, which is a good solution to over-current of electric stove wire caused by low resistance during cooling. It can easily adjust the output voltage on a scale of 0-100% (nonlinear) to electric device. Designed with and thick heat sink would enhance heat dissipation. This voltage regulator is adjusted with button which is much more stable than potentiometer. Voltage regulator has wave voltage absorbing circuit and effective protects silicon controlled rectifier, service life and more durable. Color: silver + green Material: PCB+Metal+ABS It can be used as supply for electrical devices of less than 10000W, enough for household appliances or for small factory. Could be widely used as heat controller on electric , , light dimmer on lamps, speed controller on small motors, or temperature controller on electric soldering iron. Specifications: Voltage: AC 220V Max : 10000W(instantaneous limit for impedance load; for long time , 5000w or lower is recommended) Voltage Adjustment: 0-100% (nonlinear) Controller Size: 95.7 x 56.7 x 53.8mm/3.76 x 2.23 x 2.11 inch Panel Size: 75 x 60mm Note: 1, AC input, AC output, output voltage is lower than(or equal to) input voltage; voltage can be adjusted only when connected to load; mainly used for resistive load. 2, It can not replace electric bicycles' battery charger, nor drive electric appliances which switch supply (such as 110V TV, speaker, refrigerator, conditioner, rice cooker with a computer), and cannot drive induction cooker, energy saving lamp. Package Contents: 1 x Controller 1 x 3 with switch panel 1 x Cable Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.