Verilux HappyLight

Halo

Amazon Read Review
A circular white light therapy lamp with a stand, shown against a light blue background. The lamp is slightly tilted, and the base is separated, displaying the products sleek and modern design.
Device Specifications
Hardware
Form Factor —
Mounting —
Cord Length 5.9 FT
Voltage 100-240v
Power 19W
Features
Plug & Timer Ready
NO
Built-in Timer
NO
Dimming
4-levels
CRI-Re
—
0 100
R9 (Red)
—
-50 0 50 100
CRI Chart
* Measured spectral accuracy across 15 test color samples
TM-30 Rf
—
0 100
TM-30 Red
—
0 100
TM-30 Fidelity
* Color fidelity per 16 hue angle bins
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.
Glare
— Loading…
Lux
— Loading…
m-EDI
— Loading…
CLa
— Loading…
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 Risk
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Percent Flicker
–%
0% 50% 100%
Flicker Index
—
0 0.05 0.1 (Limit) 0.15+
SVM
—
0 0.4 1.0 1.5+
PstLM
—
0 0.5 1.0 1.5+
Assist Mp
—
0 1.0 (Limit) 2.0+
Flicker Waveform
*Data from highest setting.
none
battery-powered, built-in-timer
desktop
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