40W+40W solar ceiling exhaust fan-with battery

80W 2-circuit combined monocrystalline solar panels (2 x 415x495x67mm):
40w/24v powers the fan,
40w/21v charges a 16V*9.6Ah lithium storage battery
(battery can be charged full in 6 hours & discharge 20~21 hours for the fan),
IP63 brushless DC motor,
Φ100mm air outlet, 12 inch flat louver (size: 290x290mm),
fan body: 230x230x135mm (the part that will insert into ceiling),
with 10m cable to connect fan host & solar panel
【work time: day & night nonstop & totally solar powered】

whole set warranty: 5 years

Day & Night Time Nonstop Running Solar Ceiling Exhaust Fan

The solar fan auto-runs directly powered by solar panel in sunny hours, and keeps running by auto-switchover to battery in sunless time.

16V*9.6Ah lithium battery, charged by 40W solar panel

Smart controller

Lithium battery is expensive so the fan will not waste any battery power when not necessary, which is decided by the smart controller inside the fan. This controller will keep sensing output of the fan's solar panel. When output is low to certain level, it will switch in the battery power. And when output rises to certain voltage, it will cut the battery power to avoid any unnecessary cost.
- Power
  
  40W + 40W
- Solar Panel
  
  Monocrystalline solar panel
- Work Time
  
  day & night nonstop & totally solar battery powered
- Material
  
  galvanized steel housing+PC cover

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