For the design of indoor lighting has four key;

1) installation

Of course, is the safety of indoor places, wire lines, switches, lighting distribution, leakage devices, etc., in accordance with national standards for reliable security measures.

2) functionality

Mainly depends on the characteristics of the building, if it is the library building, indoor lighting to maintain the range of 150-250lx range, not below the standard. But other places of entertainment, gymnasium and other places, the need for the actual environment and the purchase of LED lights and lighting design.

3) Artistry

Artistic indifference refers to the sense of art, the use of external characteristics of buildings, using different lighting techniques and lamps with color, giving the impact of the perspective of a different psychological effects.

4) Economy

Has been less investment to get a larger ideal lighting effect, which is the focus of economic focus.