1.1.5mm thickness Galvanized sheet enclousure or 1.5mm thickness aircraft grade aluminum enclousure
2.Stainless steel adjustable brackets from 0-90 angle for maximum strength and appearance. Will not rust overtime
3.Stainless steel fasteners and fittings for maximum strength and appearance. Will not rust overtime
4.12" nylon or alloy fan blades pitched for maximum Air flow at low rotation speed
5.Motor:12V or 24V variable brushless digital controller motor
   Designed to automatically adjust the fan speed to the amount of sunlight captured by the solar panel.
  A start voltage of only7- 24V enabling it work under wide solar conditions
6.Anti-UV power coating could survive from critical salt surroudings
7.Construction and Mounting type
   Totally weatherproof .full construction are designed for optimum efficiency and resistant to hail and extreme weather
   round base
  Curbo mounting
  square base
  flashing is seamless full waterproof
  Screen:Stainless steel mesh or hot galvanized mesh  keeps animals
  and rodents out while allowing maximum air exhaust
8.Customerized service for logo ,colour ,packing and installation manual.
9.Airflow and dBA noise