High power 18v300mah Alloy framed weatherproof Solar panel and 12cm fan kit,Ideal for providing powerful 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 ventilation,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, these kits are listed as B grade due to the solar panels having either scratches or corner chips on the glass that occurred during manufacture,the odd slightly damaged cell or occasionally light transit damage to the framework,these are all purely cosmetic though and wont affect performance at all,they are all fully waterproof and guaranteed just like any other new panel,price includes uk delivery.