Solar Fan: The latest built-in solar fan is suitable for chicken coops, greenhouses, sheds, animal houses and window fans. Solar Powered: It does not have a built-in battery, and electricity is produced directly by the solar panel. The speed of the fan is greatly affected by sunlight. When the sunlight is weak, the fan runs slowly or does not work at all. Therefore, the air flow increases with the increase of solar energy. Safe and Durable: The solar panel is made of PTE monocrystalline silicon, with a power of 6V3W and a size of 12 x 12 cm. It has waterproof effect and IP65 waterproof class. Easy Installation: The four corners of the solar fan can be adjusted 360°. and it is equipped with cable ties that can fix the solar fan in a sunny area for use. Product Information High power (pmax): 3W Open circuit voltage (voc): 6V Supply voltage (vmpp): 5V Short circuit current (isc): 1A Supply current (impp): 0.5A Silicon wafer type: monocrystalline silicon Weight: 208g Kit size: