Usage Tips:1. The trigger circuit is unique, with precise voltage regulation without lag. When the resistive load is turned off to 0 and turned on, it can be adjusted from 10V to the maximum power supply voltage close to the input 2. Silicon controlled rectifier increases RC absorption protection circuit 3. Upgrade the fan with switch intelligent control, which has good heat dissipation effect and long service life. 4. Equipped with high-end and exquisite Made of materials casing as standard, it is safer and more practical. 5. Upgrade the 's all copper 75A ultra large current terminal. Voltage: AC 110V-220V Maximum Power: 10000W (connected resistive load) Voltage Regulation: AC 0V to Input-voltage Note: the load cannot exceed the specified maximum power, please pay attention to the temperature at first use. if the temperature too hot exceed 80 °c, please enhance heatsink, or would burn out module and load. if connect to inductive load or Capacitive load, the power must leave Two-thirds (2/3) margin. Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:As Shown Material:PCB Package Contents: 1 x SCR Voltage Regulator Only the above package content, other products are not included. Note: Light reflection 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.