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Lighting in


ABT Car parking - Level 2

Step 2.2: Check the current lighting


Check the luminaire specification:



Unified Glare Rate UGR ≤ 19




Color rendering Ra ≥ 80



Read more about

Light uniformity


When light uniformity (Uo) at task area is < 0.6 (minimum), occupants experience shadows and contrasts which can be disturbing during work.


Light uniformity1
Light uniformity2



When unified glare rating (UGR) of luminaire is >19 (maximum), occupants experience lighting as uncomfortable. This can cause eyestrain.

Light glare1
Light glare2

Step 3: Check state of installation


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