I can't tell you wattage, only voltage - I have mine on an EVOD VV, it's 1.5 Ohm, and I have I can set it anywhere from 3.6+ (only gone up to 4.0), and never had a dry hit. Anything below 3.6 and the vapor production falls off a cliff, but still not a dry hit, and yes, it's an enclosed wick.