[Product list]:1 solar board,2 exhaust fans,panel size is about 220mmx190mm,exhaust fan size is about 120mmx120mmx25mm [Material]:Solar Fan Kit is made of quality monocrystalline silicon,epoxy resin laminated,IP65 waterproof,improving durability.long lasting.2 fan exhaust is more efficient [Easy to install]:The fan connection cable of Solar Fan is extended by 1 meter,making it easier to customize the installation and improve the heat dissipation efficiency.Outdoor solar panels can efficiently convert sunlight into electricity [Function]:Solar Board Powered Exhaust Fan can keep the air clean and help eliminate odors from pets,etc.Bringing you a fresher experience [Scope of application]:Solar Exhaust Fan is suitable for greenhouses,pet houses,tree houses,RVs,etc.to maintain a comfortable temperature level