... 4CCC,CE,ISOcertificate 1, JHF-400A greenhouse circulation fan for the three anti-tailored special motor, the ... installation more convenient, eliminating fan maintenance.6, before and after the double-sided mesh cover design, safety, convenience, aesthetics, hangs ... year warranty limited warranty.2: Technical dataGreenhouse ventilating fan technical dataModel JHF-400Blade diameter(mm) 400Power supply ...