1pc Brushless Electric Wrench Drive Control Board Suitable for 2106/161/169

Features: *The product is suitable for Dayi 2106/161/169 brushless electric wrenches. It has been tested before selling OK. *18V 21V Brushless Angle Grinder Drive Plate Polishing Machine Dayi *General Control Panel Size 5.3*6.3CM *Brushless sensorless angle grinder drive control board general *Control board drive voltage: 18V (5 strings of lithium batteries fully charged 21V) power 300W. *The battery pack marked with 48V 68V 88V 98V 128VF or TV can be used and its voltage is actually 18V (5 series 2 parallel 10 cells or 5 series 3 parallel 15 lithium batteries fully charged 21V) . *Before 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 shell! Otherwise there may be a buzzing alarm! *To prevent damage to the motherboard please follow the requirements. Package Included: 1*Control board Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.