This is a 3 phase AC generator, can be arbitrarily connected the two lines can light up the LED lamp bead.This product is suitable for the micro wind power miniature hydraulic hand friction power system, the three-phase ac hair in school Teaching AIDS model.Specifications:Output voltage : 3V-24VOutput current : 0.1A-1ARated power : 0.5-12WRated speed : 300-6000 rev/minThis is a great way to teach or learn about generating electricity or as an experiment starting place for larger projects.