... excess of 40,000+ shots (Guaranteed 30,000). A crystal 15 x 50 will last in excess of 100,000 shots ... +RF):The option spot size is 12*40mm,12*30mm, 15*50mm You can choose the filters (430,520,560,585 ... -15msRepeat frequency 0.3-1HzDeliverySapphire CouplingLight spot12*40mm,12*30mm, 15*50mmCooling systemWater cooling, forced-air cooling and semiconductor coolingCooling temperature ...