... Description:Electrical Dielectric Strength: 3750Vac/50HzSurface Leakage Current: ≤ 0.25mSurface heating temperature: ≤ 130 °CInternational rated power range of -10% 5% ... of ± 10%Flamm Packaging with cartons or wooden cases, each heating plates are isolated with protective film or paper, stickers or ... relevant Requirements, each package be marked "up, moisture, gently 'sign. Electric Heating Film