1. Observe the load usage for more than 3 months, and the load usage is similar. There is no major change in load.

2. To be used in motors or motor-driven equipment, the effect is good.

3. The power saver is close to the heavy load and the effect is good.

4. The current displayed on the power saver becomes smaller and the effect is good.

5. Use a circuit clamp meter to test that the circuit current becomes smaller.

6. Power saver is too far from the heavy load.