... applicable to museum, art gallery, library, cosmetic shop, jewelry shop on display lighting3.Minimal maintenance cost and pure,saturated colours,4 ... surface.5.Long lifespan 50000hours. 6. The simple dynamic control on brightness and color. It can fully satisfy the market requirement ... is 14mm, it can be installed both under ceiling and on wall.8. No pollution, no radiation, no frequency flash. It is ...