May want somthing like this : https://www.amazon.com/Heyiarbeit-Wirewound-Potentiometer-Variable-Rheostat/dp/B09D3J1FVM/ref=sr_1_1?crid=1QFCZM2TYMTH1&keywords=50W%2Brheostat&qid=1644690009&sprefix=50w%2Brheostat%2Caps%2C127&sr=8-1&th=1