Features: 50W solar panel with ventilated chassis fan, solar fan more powerful and stable operation. This solar fan is manufactured using a one-piece stamping process that you can easily mount to any wall. Installed in the attic to cool your house in hot weather by expelling heat; Install it in a greenhouse to keep the air fresh. Solar fan systems cool your roof while reducing the load on your air conditioning system, thus reducing your cooling costs with lower electricity bills. Very suitable for kennel, chicken house, camping, tourism, planting, etc., can be used as a practical tool for home office or outdoor activities. Specification: 100% brand new with high quality Solar panel: Material: monocrystalline silicon Solar panel cable length: 1 meter Fan cable length: 30cm Working voltage:12V Solar panel size: 145*145mm Output port: DC Fan: Interface voltage: 12V Current: 0.25A Speed: 250010%RPM Noise: 39dba Air volume: 87.18CFM Wind pressure: 3.86mm2HO Bearing structure: double ball bearing Diameter: 120mm Package Included: 1 x Solar panel 1 x Mini fan Note: The colors may be a little difference for the different monitor display. Please check as much as possible to make sure the item is the one that you need. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)