1,High quality and energy saving 2, Input Voltage:AC 85-264V ... -decay, long life span.2. Eficient optical grade PMMA lens, high light utilization, good illumination.3.Temperture Range:Indoor-40°C ... ,artroom,museum,office,reading room,discos,bars,karaoke okey palces,jewelry shop and other places. Application: Replacement for conventional down light ...