... . 6. Lightsource: high power led, or smd5050. 7. Size: 2.5inch, 3inch, 3.5inch, 4inch, 5inch, 5.5inch, 6inch, 8inch is available Voltage ... , washroom;2 School, university, hospital, hotel;3 Conference, meeting room, show room, showcase;4 Commercial complexes;5 Factory, plant, warehouse, office;6 Supermarket, department ...