... spot, freckles, senileplaques, sunburn, etc.Vascular therapy: Rosacea, spider veins, and vascular lesions removalSkin tightening: Improving the rough skin, skin texture ... -1200nm, 590-1200nm (optional)Transmission SystemOptical Crystal Transmission systemTreatment systemLight Filter changeable handle and unchangeable light filter handle (optional)Spot sizeFilter changeable handle15mm×35mmunchangable ...