I do light analysis for architectural purpose . II is based on the actual luminosity of light source . i take care of the placements of light in any project according to its nature and purpose , I take care of the ambiance of that place and the ultimate outcome effect of the lights . like study room lights are different from living room ,as study room require more concentration , i always take care of colors and contrast of lights ,as for study and minute work purpose the light color is tungsten filament yellow , that keep our eyes intact and healthy ,.i do it with my passion as it is a talent not a simple leaning only