1,High quality and energy saving 2, Input Voltage:AC 85-264V 3,Life span:50, ... ,only it's opposite side can get light,beam angle focused,light concenteated,powerfull contrast of light and dark.with higher lumens to ... ,jewelry shop and other places. Application: Replacement for conventional down light lamp in Hotels, Conference / Meeting rooms, Offices, Commercial Complexes, Residential / Institution ...