Bopin Suitable for 2106 161 169 Brushless Electric Wrench Drive Control Board Switch

Suitable for 2106/161/169 Brushless Electric Wrench Drive Control Board Switch. Features: xThe product is suitable for Dayi 2106161169 brushless electric wrenches. It has been tested before selling OK. x18V21V Brushless Angle Grinder Drive Plate Polishing Machine Dayi. xGeneral Control Panel Size 5.2x6.2CM. xBrushless sensorless angle grinder drive control board general. xControl board drive voltage: 18V5 strings of lithium batteries, fully charged 21V), power 300W. xThe battery pack marked with 48V, 68V, 88V, 98V, 128VF or TV can be used, and its voltage is actually 18V5 series 2 parallel 10 cells or 5 series 3 parallel 15 lithium batteries, fully charged 21V. xBefore testing the machine, you must first connect the wire-fix the motor-install the case-tighten the screw-make sure that the square shaft of the head can be easily rotated without jamming-connect the power supply-Press down the speed control switch so that there is no gap in the Otherwise, there may be a buzzing alarm. xTo p