Exclusive power supply converts the electric current from AC outlet (on the primary side) to low-voltage output (HI: DC30V) or (LOW: about DC20V) to supply it to the screwdriver. Safe and quiet rotation. Please always use HIOS screwdriver in combination with HIOS power supply for safe screw tightening. Stable power supply with multiple inputs (AC100V to 240V). (Not applicable to CLT-100 and MC-70L) Compatible Screwdrivers BLG-ZERO1 series - BLG-4000ZERO1/BLG-5000ZERO1/BLG-5000ZERO1-15/BLG-5000ZERO1-18/BLG-5000ZERO1-HT BLG-BC2 series - BLG-4000BC2/BLG-4000BC2-LT/BLG-5000BC2/BLG-5000BC2-15/BLG-5000BC2-18/BLG-5000BC2-HT/BLG-7000BC2 BLG-BC1 series - BLG-4000BC1/BLG-5000BC1/BLG-5000BC1-15/BLG-5000BC1-18/BLG-5000BC1-HT BLG series - BLG-4000/BLG-5000/BLG-5000-15/BLG-5000-18/BLG-5000-HT BL series - BL-2000/BL-2000SS/BL-3000/BL-3000SS/BL-5000/BL-5000SS/BL-5000-15/BL-5020/BL-7000 PG series - PG-3000/PG-5000/PG-7000