... energy use 3.Digital controls 4.Compact size High quality digital melting furnace machine NAP-MF-HK4 DetailsPower supply: 380V/50/60Hz ... .4,Adjustable melting temp, digital display, good insulation5,100% full load, 24 hours continuous working.6,Quick temp rising, electricity ... and low weight, easy operation, simple and convenient maintainance. High quality digital melting furnace machine NAP-MF-HK4