IR lamps

Two different devices get lumped together as “lamps for the dark season”, and they work through different mechanisms with very different evidence behind them.

Bright-light SAD lamps (what the original ask in this exchange was about): ~10,000 lux broad-spectrum white light, used ~30 min shortly after waking. The mechanism is ocular and circadian — retinal intrinsically photosensitive ganglion cells (peak sensitivity around 480 nm blue) signal the suprachiasmatic nucleus to shift the body clock earlier and suppress residual melatonin. Morning bright light is a first-line, well-replicated intervention for seasonal affective symptoms and winter energy dips; it is the evidence-backed version of “I’m light-sensitive and autumn wrecks me”. Common European models land in the €50-150 range (e.g. the BEURER TL95 the asker’s AI suggested) — at 10,000 lux the differences between reputable models are minor; what matters is distance rating, UV filter, and actually using it every morning.

Red/NIR LED panels (photobiomodulation): the answer the asker actually got. Panels of 630-660 nm red and 810-850 nm near-infrared diodes, driven through the skin rather than the eyes — the proposed mechanism is mitochondrial (cytochrome c oxidase absorption improving cellular energy production). The evidence base is heterogeneous: reasonable trial support for some uses (wound healing, skin, muscle recovery after training), much thinner for the mood/energy/general-recovery claims panels are marketed on. The reply tweet’s report — a Polish Mitowell panel giving “more strength, better recovery” to a child with SMA — is an anecdote, not evidence, and typical of the genre. Panels cost 10-30x a SAD lamp.

The two are complements, not competitors: bright light answers the circadian winter problem (wrong-time light); red/NIR targets tissue-level effects with light the body never evolved to expect in winter (near-infrared from the sun reaches skin mostly on warm days, when you are outside in little clothing — hence the “indoor winter = NIR deficiency” framing popular in biohacking circles, which is a plausible-but-under-tested story).

My read for a light-sensitive autumn energy dip: morning bright light first (cheap, strongly evidenced), red/NIR panel second (expensive, speculative for this purpose).

Sources

• FinansowyUmysl’s ask (PL, 2026-09-23) — looking for a lamp for the autumn-winter energy dip, BEURER TL95 suggested by AI. Captured privately in clippings/x-2102849647148462364.md.
• OliWojowniczka’s reply (PL, 2026-09-23) — “only a lamp like this makes sense”: Mitowell red/NIR panel, reported strength/recovery gains in a child with SMA. Captured privately in clippings/x-2102874340757021143.md.

Links

• ADHD as a circadian rhythm disorder
• Bright light therapy (red — future note)