1.Heater cartridge wire as a heating elements, the voltage 12v and power 40 Watts is around 3.6 Ohms and 3.33 Amps.
2.12v cartridge heater hold good for quality prints, the wires are well insulated and enough long.
3. Pls check your wire routing and make sure there is no strain on your wiring, and that the thermistor (temp sensor) is in the correct hole in the hot end when using.
4. Pls dont immerse the heater cartridge in water.
5. Pack of 3pcs 12v 40w heater cartridge.
Voltage: 12V, Power: 40W (12v and 40 Watts is appro. 3.6 Ohms and 3.33 Amps).
Heater cartridge wire length: 39.4in / 1M.
Diameter: appro. 6mm, Length appro. 20mm.
Material: 304 stainless steel.
Application: Reprap Prusa I3 3D Printer like A8 A6 cr10 etc.