1.1.5mm thickness Galvanized sheet enclosures or 1.5mm thickness aircraft grade aluminum enclosures

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",or 14" nylon or alloy fan blades pitched for maximum Air flow at low rotation speed

5.Motor:German design 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 surroundings'

7.Construction  

 Totally seamless weatherproof .full construction are designed for optimum efficiency and resistant to hail and extreme weather

8.Mounting type

  Round flat base

  Curbo mounting (rice is higher 5%)

  Square flat base

flashing is seamless full waterproof

Screen: Stainless steel mesh or hot galvanized mesh  keeps animals

and rodents out while allowing maximum air exhaust

9.Customerized service for logo ,colour ,packing and installation manual.

10.Airflow and dBA noise