Voltage 12v Only Dc Or Solar Ampire 1.90 Rpm 15000 ++ Size 5 x5 x 1.6 inch Color white Body Metal Fan Blade 9Blades Use For Large Hall Incubator, Mushroom Farm Exect area etc. Be Carefull When it is in opration. Very high speedfan. Weight 400 gram be care ful when it use do not touch...