I'm sorry to inform the problem you late,
My Boss inform me. he found the mistake about the packing materials.
1. Please change Rated Input Power: 650-820W to 820W only.
( please revised every detail about 650-820W on the packing materials)
2. Please open file the attached for the packing materials revised.
3. Please revised and send it to my check again.
Sorry for your inconvenience.