new to site,and wood like to say hi, and could use some help on with blades to use on my windmill,and solar set up,shoud I use 5 blades or 3 blades my generator put out 12volts-3.50amps-at330rpm and at 700 rpm it make 25 volts and 7amps who sell the the best blades,that I can used, thank you honda