Worksheet · Workplace
Glare control does more for a lighting spec than higher lux
A lighting line clears value engineering only when its benefit names a number, such as 500 lx or a UGR of 19, and cites a standard.
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The evidence behind this sheet
14 factorsheets carry the studies for and against, each with how firm that evidence is.
- Illuminance probably raises sleep quality.
- Illuminance has a non-linear effect on sustained attention.
- Illuminance probably lowers fatigue.
- The evidence is very uncertain whether illuminance affects comfort.
- Illuminance probably raises circadian alignment.
- The evidence is very uncertain whether illuminance affects productivity.
- Illuminance has a non-linear effect on visual comfort.
- Illuminance probably raises information processing.
- The evidence is very uncertain whether illuminance affects heart rate.
- Illuminance probably raises working memory.
- The evidence is very uncertain whether illuminance affects calm.
- The evidence is very uncertain whether illuminance affects stress.
- Glare probably lowers comfort.
- Illuminance raises cognitive control.