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Home lighting for eyes and sleep
Home lighting for eyes and sleep: lumens per room computed from task illuminance and floor area, so "how many lumens for a kitchen" gets a number instead of…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
Lumens per room computed from task illuminance and floor area, so "how many lumens for a kitchen" gets a number instead of an opinion.
Item pages explain colour temperature and where each belongs, colour rendering and R9, the EU flicker limits that came into force with the 2019 ecodesign rules and two ways to see flicker with a phone, dimming without flicker, reading the current energy label and the public product database, the evening light recommendation in melanopic terms, glare at a desk, IP ratings for bathrooms, the higher illuminance older eyes need, and why cheap LED lamps die early. ~15 pages.
How to use it
Use Home lighting for eyes and sleep to understand the inputs, units and assumptions before relying on an output. A useful result should be reproducible from the named source rather than presented as an unexplained score.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | kui palju luumeneid tuppa vaja |
| Finnish | kuinka monta lumenia huoneeseen |
| Russian | сколько люмен нужно на комнату |
| English | how to test LED flicker with a phone |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: Regulation (EU) 2019/2020 flicker limits and the EPREL product database (EUR-Lex + open EPREL), EN 12464-1 task illuminance (catalogue abstract), Brown et al. 2022 (PLOS Biology, CC BY), published age-related illuminance research (cited). · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
This guide owns the explanatory layer for the topic. Personal decisions, diagnoses, legal determinations and live availability remain with the relevant professional or official service.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Why it belongs on TempoLife
/bedtime, /eyes, /screentime.
Frequently asked questions
What does this guide cover?
Lumens per room computed from task illuminance and floor area, so "how many lumens for a kitchen" gets a number instead of an opinion. Item pages explain colour temperature and where each belongs, colour rendering and R9, the EU flicker limits that came into force with the 2019 ecodesign rules and two ways to see flicker with a phone, dimming without flicker, reading the current energy label and the public product database, the evening light recommendation in melanopic terms, glare at a desk, IP ratings for…
What evidence does it use?
Regulation (EU) 2019/2020 flicker limits and the EPREL product database (EUR-Lex + open EPREL), EN 12464-1 task illuminance (catalogue abstract), Brown et al. 2022 (PLOS Biology, CC BY), published age-related illuminance research (cited).
Where does this guide stop?
It explains the topic and points to primary or official sources. It does not replace a qualified professional, an official decision, or advice based on your own circumstances.
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