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Bright-light lamps and dawn simulators
Bright-light lamps and dawn simulators: every lamp says 10,000 lux and none says at what distance, so the anchor page is a computed lux-against-distance…
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
Every lamp says 10,000 lux and none says at what distance, so the anchor page is a computed lux-against-distance table for the panel sizes actually sold, next to the protocol used in the published trials. Item pages cover lamp area mattering more than the headline figure, UV filtering and photobiological safety risk groups, dawn simulators and their evidence, light visors, timing for shift work and jet lag, what "CE medical" does and does not mean on a lamp, and the side effects that end the experiment. ~13 pages.
Written for the Nordic winter market where the searches are.
How to use it
Use Bright-light lamps and dawn simulators 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 | valgusravilamp kas aitab |
| Finnish | kirkasvalolamppu teho lux |
| Russian | лампа для светотерапии 10000 люкс |
| English | how far from a SAD lamp should I sit |
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: published light-therapy randomised trials and Cochrane reviews (cited), EN 62471 photobiological safety (catalogue abstract), THL and Terviseamet guidance where published; inverse-square lux computed. · 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
YMYL. Named source per claim, no treatment promise, explicit clinician boundary for depression and for bipolar disorder.
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.
Winter
Continue to the related TempoLife reference.
Chronotype
Continue to the related TempoLife reference.
Why it belongs on TempoLife
/sun, /winter, /bedtime, /chronotype.
Frequently asked questions
What does this guide cover?
Every lamp says 10,000 lux and none says at what distance, so the anchor page is a computed lux-against-distance table for the panel sizes actually sold, next to the protocol used in the published trials. Item pages cover lamp area mattering more than the headline figure, UV filtering and photobiological safety risk groups, dawn simulators and their evidence, light visors, timing for shift work and jet lag, what "CE medical" does and does not mean on a lamp, and the side effects that end the experiment. ~13…
What evidence does it use?
published light-therapy randomised trials and Cochrane reviews (cited), EN 62471 photobiological safety (catalogue abstract), THL and Terviseamet guidance where published; inverse-square lux computed.
Where does this guide stop?
YMYL. Named source per claim, no treatment promise, explicit clinician boundary for depression and for bipolar disorder.
Turn the reference into a routine
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