The Dual mode Quadra Q4 is approved by the FDA to treat Pigmented and Vascular Lesions including age spots, unwanted freckles, sun damage and telangiectasis on skin types I-IV. It is also approved for Hair Removal on skin types I-V. Safety and Efficiency Together The patented Quadra Q4 uses a Krypton and Xenon flashlamp, optimizing key absorptions of the light in hemoglobin, melanin and hair. This allows for increased safety and simplicity of use. There are no filters to change, no complicated settings, and yet the Quad-pulse maintains high efficiency throughout the spectrum. Light-Energy Recycling ensures that escaping light is guided back into the treatment area. Quadra Q4 features a 5cm2 spot size for faster treatments.