Long LED life: More than thirty thousand hours, No UV or IR light radiation, No mercury or other inorganic, Highest luminous efficacy: Up to fifty-six lumen per watt for warm white color, High PFC: Equal to or more than zero point nine, Safest lamp: Whole lamp is electrically insulated, Homogeneous flood illumination, Polymer heatsink with excellent thermal radiation power, five watt LED bulb can achieve directional light output equal to forty W incandescent bulb, two year limited warranty, Works with worldwide electrical systems.