... -precision constant current drive, which can extend the LED lifespan;5.The tube has automatic illumination detection device ... hotel, office, washrooms,School, Library, Hospital,Subway Station, Bus and Train,Restaurant, Factory, Production Line, Warehouse, PathwayOur service:1. ... in 12 hours2.OEM and ODM service is available in our company: T8,23W intelligent infrared LED underground parking tube light ...