... Specifications This Product. Lumenis Lightsheer XC S/N 3950, Factory Refurbished 07/2013! SN: 3950, 400 ms, New Factory Handpiece and computer ... boards all replaced by Lumenis! Upgraded to 400 ms, Headroom = 1.58, this is A LIKE NEW SYSTEM ... mm (square) Fluence 10-100 J/cm2 Pulse Width 5-400 ms OptiPulse Peak Power 2900W Electrical 100-120 VAC, 16A ...