This item has new two-way power 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 adjust the output voltage on a scale of 0-100% (nonlinear) to power electric device. Designed with and thick heat sink that 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 power silicon controlled rectifier, service life and more durable. Color: silver + green Material: PCB+Metal+ABS It can be used as power supply suitable for electrical devices of less than 10000W, enough suitable for household appliances or suitable for small factory. Could be widely used as heat controller on electric stoves, , light dimmer on , speed controller on small motors, or temperature controller on electric soldering iron. Specifications: Voltage: AC 220V Max Power: 10000W(instantaneous limit power suitable for impedance load; suitable for long time use, 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 to) input voltage; voltage can be adjusted only when connected to load; mainly used suitable for resistive load. 2, It can not replace electric bicycles' battery charger, nor drive electric appliances which use switch power supply (such as 110V TV, speaker, refrigerator, air conditioner, rice cooker with a computer), and cannot drive induction cooker, energy saving lamp. Package Contents: 1 x Controller 1 x 3 keys with switch panel 1 x Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.