Quiet solar attic fans with noise levels below 30 dB

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Some information about Quiet solar attic fans with noise levels below 30 dB:

Product Type	Solar Fan
Company Name	SUNNY INTERNATIONAL POWER LIMITED
Core Components	Motor
Production experience	10+years
Place of Origin	Jiangmen,Guangdong,China
OEM and ODM	Support
Product Features	Energy-saving,Intelligent,Low maintenance,Environmentally friendly...
Power Source	Solar
Motor	Grade BLDC Motor
Application	residential house,industrial buildings,factories,shopping mall...etc
Payment	L/C,T/T,paypal...etc
Whole unit warranty	5 years(in condition of no acid nor alkali corrosive environment)
Designed lifespan	15 years+
Materials	Metal&Plastic
Packing	88 * 29 * 95 According to container size, standard export package
Certificate	ISO,CE....
Battery	lithium battery
Color	Black,Grey,White, and customized color
Port	Shenzhen,Guangzhou...
Control Method	Intelligent control
Trading Country	South america,North america,Europe,Southeast asia,Kenya,Cayman Islands,India,Chad...
Selling Units	Single item
Work Time	Day & night nonstop, sunny hours by solar panel, sunless periods by battery
After-sales Service	Online support