Copper Heating Elements Output Power:1200-3000W Voltage:220V-240V/50Hz,110V/60Hz Packing details:1pc/poly bag,50pcs/carton Material: Copper Sheath Diameter:Dia.8.0mm,8.3mm; Length:30cm; 1 1/4 brass flange, with/without anode holding M5/M6 Approval: CE certificates.