features its superior quality, high efficiency, water resistant and long lifespan. It is suitable for dry, damp or wet locations. Moreover it is regarded as a transformer of AC to DC. It has variety wattage options and remember to choose it carefully. Hope you satisfied with this switching power supply. Features: Universal input /full range. Aluminum case and high efficiency dissipation. 100% full load burn-in test. IP67 design for indoor or outdoor installations. High efficiency, long life and high reliability. Suitable for dry / damp / wet locations. All using long life electrolytic capacitors. Small and compact case, easy installation. Protections: Short circuit/over load/over voltage. With stable output ripple.