... cooling system4.aluminum alloy pacakging5.one year warranty CEOB-E 04 Specifications:Light Source 8 times atmosphere pressure of pulse, USA ... . 4) Dilated Vessels, such as varicose veins (vascular), telangiectasis, port wine stains,hemangiomas, rosacea. 5) Poikiloderma6) Scars and Stains7) Acne Vulgaris