1.The LED have ling life (more tham ten year)

2.It's easy to use,and can be used as a torch at night

3.It keeps working for more than 200 hours with only double lithium batteries (CR2016) or one

(2032) placed in it

4.Advertisements can be printed on the two sides

5.The special white light makes it possible for the object to show its oroginal colour