A new type of bi-directional high-current thyristor is used, capable of handling up to 25 A, which helps prevent over-current issues caused by thin electric furnace wires during cooling. The product allows easy adjustment of output voltage between 50 and 220 volts, making it suitable for electrical equipment with varying voltage requirements. The thyristor is primarily designed for resistive loads such as incandescent lamps. It can also be used with most single-phase AC motors, though performance is not guaranteed. This product is ideal for controlling various electrical devices including lamps, fans, and motors. Maximum load capacity is 2000 W; however, prolonged use should involve reduced load. It is recommended to keep the load below 1000 W at room temperature. Specifications: Voltage: 220 V Maximum Power: 2000 W (resistive load) Voltage Adjustment Range: 50–220 V AC Circuit Board: High-temperature resistant FR-4 Color: As shown in picture Material: Composite material Dimensions: 48 mm x 60 mm x 28 mm Package Contents: 2 x Controllers Note: The package includes only the items listed above. Other accessories shown are not included. Lighting and display differences may cause slight variations in color between the product image and the actual item. Measurement may vary by +/- 1–3 cm.