https://www.amazon.com/SSR-25DD-Solid-State-Relay-Output/dp/B09QSM3TFQ/ref=sr_1_1_sspa?crid=BE1CQZPAVGD7&keywords=DC%2BIN%2BDC%2BOUT%2BSSR&qid=1652989435&sprefix=dc%2Bin%2Bdc%2Bout%2Bssr%2Caps%2C114&sr=8-1-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExT0hVWVRLTU81Nk9JJmVuY3J5cHRlZElkPUEwNTYzNjcwMU9ESlFWUzBaMjBaUiZlbmNyeXB0ZWRBZElkPUEwOTMxMjU2MzBVR0dPMjZUMFZCVSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1 Hope I did the link right, the heater is 1200 W 24V dc