... hours4)Healthy,no ultraviolet radiation,no thermal effect5)Envirenment friendly6)Direct current drive, no stroboscopic, protect eyesight.Specifications:Item: ... ,meeting room, school, exhibition,so on B. About Factory:.Experence: We have been exporting lighting products since 2007, ... North and South America market at the moment.Factory: Sales Team: Let's cheer for our future cooperation! Office Panel ...