Silent type with 72dBA noise . Powered by Chinese engine. Low fuel consumption. EPA, CE, ISO, SONCAP ... water-cooled soundproof cummins diesel generator set for 77kw GENSET MODELC20/sCONTINUOUS OUTPUT20KW/25kvaSTANDBY OUTPUT 22KW/27.5KVADIESEL MODEL4B3. ... heater, cooling for heating exchange, communictaion interface, battery charger by main supply, daily fuel tank, ATS and paralleling system,soundproof ...