High power 18v300mah Alloy framed weatherproof Solar panel and 14cm fan solar ventilation kit,Ideal for providing powerful solar ventilation in greenhouses,summerhouses,conservatories etc,simple to use,just connect the two together and whenever its fairly sunny the fan will work automatically,this is the most powerful model in our range and will run the fan at full speed on a sunny day to provide powerful solar ventilation,extraction at full speed is approx 68cfm,mounting holes are provided on the panel for easy mounting to any flat surface if required,the fan has fixing holes in all four corners for easy fixing to walls or it can of course be fitted into tubes or air vents,the panel is fitted with 5 metres of cabling and a terminal block is also provided for connecting to the fans cabling,this is a very popular model in diy projects such as making heatsinks for greenhouses,moving hot air from conservatories/loft space throughout the building etc, price includes vat and uk delivery.