1)Low-voltage Electric Brushless Screwdriver 2)Brushless 3)3C.UL,ISO9001,CE 4)One year warranty 5)Cheap and fine AS Automatic Brushless Electric ... condition of 5C electronic industry.Double power supply of input AC (100-200V) and output (20-30V) ,frequency conversion & constant ... Auto parts,lamps,office equipments,air condition equipments,game machines. Low-voltage Electric Brushless Screwdriver