... .0Mnumber of blade3pcs4pcsGenerator Diving modedirectdirectrated speed300rpm300rpmrated output300w1000wcover materialerosion resistant alumiumerosion resistant alumium Feature of wind power turbine 1. It can be installed in ... roof of public facilities, companies,factories, and residence, etc. 2. Wind-resistant structure , noise-free, vibration-free, and will not hinder the ...