SX-H2O2 is the test instrument for the ultra high accelerated weathering test method. It is consisted of Super Xenon Weather Meter, which is capable of irradiating three times of the solar radiation (180W/m2 at 300-400nm) and Hydrogen Peroxide Solution Spray Feeding Device. Weather-resistance of paint can be evaluated with acceleration factor of approximately 100 times or higher when compared to outdoor exposure. A large number of instruments have been delivered to and are being used by Japanese auto manufacturers and major paint manufacturers.