หมายเหตุ มาตรฐาน IES คือ Illumination Engineering Society มาตรฐาน BS คือ British Standards Exposure lndex ตัวเลข คือ ค่าความส่องสว่าง ( lux) W = Working Plane , S = Surface, F = Floor
Note:IES Illumination Engineering Society is the standard.British Standards BS is Exposure lndex.The figure is the luminance (lux)W = Working Plane , S = Surface, F = Floor
Note that standard IES Illumination Engineering Society 's standard BS British Standards Exposure lndex number is, the luminosity (Lux) W = Working Plane, S = Surface, F = Floor.
Note IES is Illumination standard Engineering Society standard BS is British Standards Exposure lndex numbers is the luminance. (Lux) W = Working Plane S =, =, Surface F Floor.