Applicable for MAKITA, for DAYI universal type Control board drive voltage: 18V (5 strings of lithium batteries, fully charged 21V), power 300W 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 requirement Tips: The product may be updated constantly; due to different batches, the actual product may have slight differences or color variations, which do not affect use Color: as shown in photo Material: plastic Package Contents: 1 x Control board Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm