... cooling or without coolingSpotsize: 1.5mm, 3mm, 5mm, 8mmEr: YAG variable pulse&franctional 2940nmWavelength: 2940m,Energy: 0.2~2j,Duration: 0 ... spotsize 24x8Standard e-light handpiece, with spotsize 40x8System overview:Operating panel: 8.4 TFT color touch screenMeasure: 54x45x132,Wight: 62kgThe ... cooling 1.5mm, 3mm, 5mm, 8mm 2~6mm/5~12 variable size long pulse nd: yag 1064nm5~18J 3~10mswith cooling 1 ...