It would be good to put a dc controller in between panel and dc fan.
													
																	How to use a solar panel to run a fan. 
									
	
		
	
																	Solars fans run on solar energy instead of electricity. 
																	A fan having 12vdc and 25 watt need a panel of 12vdc and 30watt. 
																	The pc fan needs a voltage of 12v with at least 0 3a 300ma to run. 
																	The solar board is 1 2v and 300ma. 
															
													
									
	
		
	
																	Western harmonics solar powered fan kit 1505 hg features a great fan running directly off a 10 watt solar panel. 
																	Great for a variety of uses. 
																	I use these fans in many things that i make so i wanted to cut this video to show the basic hook up from fan to. 
																	Video shows the basic hookup of a standard 80mm computer case fan to a solar panel. 
															
													
									
	
		
	
																	This system he made makes the fan to run but not as fast as to generate a proper wind to be. 
																	Similarly to how solar lights works a small solar fan is powered by a solar panel that is either mounted on the device or wired to a separate installation. 
																	This circuit is a voltage doubler that doubles or triples the voltage to make the fan run but the power watts stays same even smaller a little.