1watt metal oxide 10 ohm. burned up in 45 seconds for me.. better off getting more resistors. or going with cartridge heater. if you are in the usa you can find the resistors from digikey. [
www.digikey.com]〈=en&site=us&KeyWords=RWM0410 will give you a link to resistor values to choose from. these are high temp resistors. i think rated for 3watts, but 5.50mm in diameter.