Welkin Electronics (Sanwei), a manufactuer of balastros electronicos for fluoresenct lamps in 120V & 277V, T8 and T5 type Welkin Electronics (Sanwei), a manufactuer of balastros electronicos forfluoresenct lamps in 120V & 277V, T8 and T5 type, mainly exports toNorth and South of America, Carribean, Central America, Latin America. The products we supply can be divided into:1. Usual model: Power factor>0.98, >0.95 or >0.55 three types2. UL & FCC listed model: Power factor>0.99

ballast electronicos to Central America