The unit you linked is 12V. At 200W you are gonna quickly push pass the ratings of most connectors. Go with a mains version and run an SSR for controlling it.

If you're gonna opt for an import heater, at least go with Keenovo. They seem to have the least QC issues. https://www.amazon.com/dp/B00RLMVBN0/ref=cm_sw_r_cp_api_xOuLybW9743RT