From 488916fb2a3b1aa6e83dfbf6401ed45d9c9dadb6 Mon Sep 17 00:00:00 2001 From: The_miro Date: Sun, 2 Aug 2026 01:22:55 +0200 Subject: [PATCH] Recommend a 90% max_brightness cap rather than 95% Same tradeoff, weighted toward lamp life: ~4x life for ~30% less light, with 95% noted as the fallback if it reads too dim in practice. Co-Authored-By: Claude Opus 5 --- docs/stage-light-dimmer.md | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/docs/stage-light-dimmer.md b/docs/stage-light-dimmer.md index 82e3f8d..484c18e 100644 --- a/docs/stage-light-dimmer.md +++ b/docs/stage-light-dimmer.md @@ -182,11 +182,12 @@ Three worth doing: time until the lamp goes unstable, then back off one step. That point is the real bottom of the usable range, and it's fixture-specific — worth writing the final value down. -- **Consider capping `max_brightness` around 95%.** Filament life is brutally - sensitive to voltage: roughly `life ∝ V⁻¹³` against `light ∝ V³·⁴`. Running at - 95% buys about **double the lamp life for ~15% less light** — a good trade on a - fixture whose lamp type may well be discontinued (§6). At 90% it's roughly 4× - life for ~30% less light, if longevity matters more than output. Rules of +- **Cap `max_brightness` at 90%.** Filament life is brutally sensitive to + voltage: roughly `life ∝ V⁻¹³` against `light ∝ V³·⁴`. Running at 90% buys + about **4× the lamp life for ~30% less light** — a strong trade on a fixture + whose lamp type may well be discontinued (§6), and this is a mood/accent light + rather than something being asked to actually illuminate a room. Back off to + 95% (≈2× life, ~15% less light) if it turns out dimmer than you want. Rules of thumb, not exact, but the direction is very strong. - **Pass `transition: 2` in `light.turn_on` calls.** Ramping over a couple of seconds cuts the cold-filament inrush, which is the biggest single wear event