... slim acrylic frame waterproof poster changeable light box LED Crystal Light boxFeatures:1) Light box with slim frame2) Waterproof3 ... and UL certified LED module using high quality chips,2.Super high brightness, Light uniformity, over 50,000 hours ... (m)20001000Wattage/m23060~250QualityPatented products, high quality material,non-maintenanceRegular maintenance Crystal Light Box hanging slim ...