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 to 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.