... its high efficiency,rapid respone speed. EFR laser power supply can be used for CO2 laser tubes 60W,80W,100W,120W,130W,150W ... can be used for closed-loop control and also for checking the laser tube's operating current. 4. Power supply itself has a protection ... (mm) 250×139×107 285×139×107 352×139×107 power supply for co2 laser tube