Circadian Optics

Langham Max

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A rectangular, black-framed whiteboard stands upright on a flat base, featuring a small orange circle at the bottom center against a light background.
Device Specifications
Hardware
Form Factor —
Mounting —
Cord Length 9.3 FT
Voltage 100-240v
Power 141W
Features
Plug & Timer Ready
NO
Built-in Timer
NO
Dimming
continuous

Color Data

CRI-Ra
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CRI-Re
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R9 (Red)
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CRI Chart
* Measured spectral accuracy across 15 test color samples
TM-30 Rf
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TM-30 Rg
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TM-30 Red
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TM-30 Fidelity
* Color fidelity per 16 hue angle bins

Spectral Data

Glare
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Lux
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m-EDI
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CLa
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Recommended Protocol: Calculating…
What it is: A measure of visual discomfort caused by high-intensity light emitting from a small surface area.
What it means: High glare (“hot spots”) can cause headaches, eye strain, and drastically reduce user compliance.
Ranges: <100: Comfortable | 100-250: Standard | 250-500: Harsh | >500: Extreme.
What it is: A standard measure of visual brightness (photopic illuminance).
What it means: Used historically to prescribe therapy times.
Ranges: >10,000 is High Intensity. >5,000 is Standard. >2,500 is Active Ambient.
What it is: Melanopic Equivalent Daylight Illuminance. Measures how effectively light stimulates ipRGCs in your eyes.
What it means: The modern standard for predicting biological and circadian impact.
Ranges: >1,000 is High Potency. >500 is Standard. >250 is Active Ambient.
What it is: Circadian Light (CLA) measures light based on its ability to suppress melatonin.
What it means: Evaluates how effectively a lamp stimulates your body’s master biological clock.
Ranges: >2,000 is High Potency. >1,000 is Standard. >500 is Active Ambient.
Spectral Output
*Data from highest setting. This is for informational purposes and is not medical advice.

Flicker Data

Flicker Risk
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Percent Flicker
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Flicker Index
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SVM
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PstLM
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Assist Mp
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Flicker Waveform
*Data from highest setting.
Flicker Risk
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Percent Flicker
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Flicker Index
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SVM
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PstLM
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Assist Mp
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Flicker Waveform
*Data from dimmed setting: Halfway (50%)
none
smart-outlet-timer-compatible
large-panel-tabletop
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