The package was received, arrived very quickly. Unfortunately, the knob of the voltage regulator is folded, the initial position is approximately between the 3rd and 4th divisions of the scale, the final one reaches the beginning of the scale. The output voltage at no-load is approximately from 3.5 to 27 volts instead of 1 - 24. In this regard, a decrease in the number of stars.
The product is well packed, the package arrived very quickly. Thank you seller!