1. Working voltage: AC 220V
2. Regulation voltage: AC 10-220V
3. Efficiency: more than 90 percent
4. Power: 4000W (resistive load limit power), long time should reduce power use
5. Weight: about 133.2 g
6. Size: about 8.5 x 5.5 x 3.8 cm, the knob hole is about 6mm

Functional features:
1. 41A thyristor, 1.6mm thick FR-4 high-temperature circuit board, circuit design is reasonable, and the use of larger and thicker welding circuit design, even if the high current through the enough to cope with the use of a more reliable
2. Using the standard 3 of the 4-position terminal block, two in two out more convenient wiring, with a shell with a fuse regulator, installation is more convenient, more suitable for families and inconvenient installation of factories and enterprises
3. The circuit has been improved through a number of technical improvements, the use of dual capacitor design (safety gauge capacitors + metal film capacitors), effectively absorbing surges and voltage spikes, more effective protection of the SCR, the use of more efficient and more
4. External 1.5 thick aluminum and stainless steel molding stamping, beautiful and generous, more suitable for home thermostat speed control and industrial enterprises, beautiful and generous, the use of long time will not rust and other appearance problems
5. 4000W voltage regulator, technology upgrades, voltage range from 10V-220V smoothly adjustable, more suitable for industrial enterprises that need low voltage to drive the heating wire, such as cutting styrofoam, pearl cotton, raincoat production and so on

Attention:
1. Pay attention to connect the load before regulating the voltage
2. Thyristor is mainly used for resistive loads (electric filament incandescent lamps, etc.), single-phase AC motors can also be most, but does not guarantee that all can be other types of loads, please buyers to confirm their own, the fuse is not, there is a reaction time, if the current is too large, in addition to burn the fuse, the module may also burn out
3. Pay attention to the plastic cover on the connector due to the installation of the shell, can not be completely lifted, the screwdriver should be biased point screwing, in addition to lift to be careful, too much force is easy to break the cover, courier transportation may also be crushed for wearing parts, but will not affect the module to use