1,floor heating cable,such as under ceramic tile 2,warranty:50 years 3,certificate:ISO,CE ... ROHS 4,workv voltage:110V,220V,240V 1,floor heating cable ... certificate:ISO,CE ROHS4,workv voltage:110V,220V,240V Cable conductor1 conductorRated voltage110V,220V.240VOutput power18.5W/MConductor insulationcross ... of insulation layer Energy saving Floor Heating Cable