Although the double covered cord is safe and secure, it is inconvenient for moving and storing. Because it is thick, it may be nice to be hard to twist. When connecting with the main unit, the slip-off specification contributes to the safe operation. 1500 W That means that the maximum capability of the equipment can be demonstrated as a tolerable range at the level including the voltage drop. The equipment works well, so it is easy to concentrate. The opportunity was not an outward specification table of equipment makers, but was to fully set the ability from actual power consumption.