electric magnet solenoid motor: 1)High quality,low cost 2)Smooth and quiet operation 3)OEM new designs 4)Energy saving electric magnet solenoid motor Application :1)hand operated charger,emergency power box,hand operated torch,cellphone charger, Electric toys , Electric tools ,etc..2) function:Mountain climbing and hiking, camping such outdoor sports; Blackouts, earthquake, flood, etc, to provide ...