Product The solar panel is equipped with a fan of the ventilation box, which makes the solar fan run more powerful and stable. This solar fan is made of one-piece stamping technology, and you can easily install it on any wall. It is installed in the attic to cool your house in hot weather through heat dissipation; It is installed in the greenhouse to keep the air fresh. The solar fan system can reduce the load of the air conditioning system while cooling the roof, So as to reduce your cooling costs and electricity bills. It is very suitable for kennels, chicken houses, camping, tourism, planting, etc., It can be used as a practical tool for home office or outdoor activities. Product specification: Solar panels: Material: monocrystalline silicon Fan cable length: 30cm Working voltage: 12V Size of solar panel: 145*145mm Output port: DC Fan: Interface voltage: 12V Current: 0.25A Speed: 2500 10% rpm Noise: 39dba Air volume: 87.18cfm Wind pressure: 3.86mm2ho Bearing structure: double ball bearing Diameter: 120mm Package includes: 1 x solar panel 1 x Mini Fan Note: Different monitors may have slightly different colors. Please check as much as possible to ensure that the item is what you need. Please allow a difference of 0.5-1 inch due to manual measurement. (1 inch =2.54 cm)",