Class 2 power supply, passed LPS test UL certified power supply, quality assurance; Completely sealed, IP67 high waterproof level protected against the effects of temporary immersion in water; Hiccup overload protection, automatically recover after fault condition. Constant-voltage mode; Free air cooling system, low ripple noise, long lifespan, environmental friendly; Suitable for most LED productions, including decorative lighting, home lighting, commercial lighting etc