40W brushless DC powerful solar axial air extractor fan tools hvac system solar air conditioner industrial evaporator fan

With easy installation and no dependence on AC grid, the solar wall ventilator freshens air for various premises especially attic, gable space at no cost.

It would pump out interior stale air and over heat to improve indoor air circulation, reduce moisture & harmful mildews, and help reduce the load on air-conditioner and HVAC system in Summer...

This waterproof controller is like a little smart computor, the solar wattage output becomes its signal so that it can sense when sunlight is weak, and then it switches in the back-up power to power the fan together with the solar panel. Not any solar energy is wasted, meanwhile, fan is still running fast.

And you may decide Battery or Adapter as back up depending on whether there is convenient AC grid in your location.

With additional transform mounting frames and screws, 4~9 sets of 14'' wall fan can be assembled into a large solar extracting fan, or any else customized combinations, to meet more needs in ventilating, suit various position by flexible installation.

PS: this frame is optional extra accessory, please contact our sales for more information.

We are offering Assurance both in product quality and trade, promising to better serve your need for a

long-term and win-win cooperation.

Every spare part of our solar fan can be free replaced and maintained within warranty time, if solar fans are with something wrong themselves ( except the man-made damage ); Also, spare parts are available for replacement if the warranty is expired.