... of our products obtain CE ,RoHs certificate. Specification: Battery size(mm)125Lx25DImotion size(mm)180LGift box(mm)180 ... CB,DR,LO certificateCE. RoHS, SGS, UL Component: Battery(18650)2200mAh1pcCE4/CE52pcscomplete tube with manual1pcCharger1pcGift package1pcFeatures:Single button ... adjust your voltageLighted pushbutton acts as a low battery alertuse Pulse Width Modulation for the voltage outputPCB ...