Features: Found with a 36V power supply completely into the new 30x30 crucibles input current of 25A Found moltenaluminum Power Requirements: 24V 350W - 500W power supply (15A to 20A) [melting point: 660℃] Found melting copper, silver, power requirements: 36V 700W - 900W power supply (20A to 25A), respectively melting point: 1083℃, 1065℃, 962℃. DIY small parts made of steel hardening, annealing belows the meltingpoint of 1100℃ metal smelting, DIY small cooker and so on. Only direct heating a steel material ( the magnet can be adsorbed material) copper,silver, aluminum can not be directly heated, need to matching the crucibles melting,Workwhirlpool brass heating will need to use lot of water circulation cooling,Without water circulating cooling are possible, but will burn into a black vortexbrass, it will not be much affected Specifications: Material:Copper Working voltage :DC 24-36V Working current:20A Power tube:Original IRFP260N (50A200V) Size:Approx.100x100x85mm/3.93x3.93x3.34inch Copper pipe size:Inside diameter 40mm, high 45mm Package Includes: 1x Induction Heating Board With Fan 1x Copper Pipe 1x Water Pipe note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.