I have been searching the net for information to make a water wheel to power pond lights. I have a pump moving 5000 gph. Would like to build a water wheel to generate electricity to power the other pond accesories. I was looking for books and information on how to make a generator or alternator and how to us it to power light, How much power is needed and just general information. Sorry if I sound stupid, but any help and points in the right direction would be greatly appriciated. Thanks.