Lighting / Illuminance Design (照度计算)

Utilization-factor, specific power density and road lighting design with a built-in lamp and room illuminance database.

Space / room

Lamp type

Required illuminance E (lx)

Lamp power P (W)

Length L (m)

Width W (m)

Mounting height h (m, luminaire to workplane)

Total flux Φ (lm)

Maintenance factor K

Utilization factor U

Room index KR = L·W/(h·(L+W)) guides U for typical reflectances.