Verilux HappyLight · $$ · Updated April 8, 2026
Luxe
Ranks #29 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at full power.
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Is it strong enough?#29 of 57
No. Only 34% of the 10,000 lux benchmark at 1 ft.
3,430 m-EDI at 1 ft · 930 at 2 ft
Is it comfortable to sit in front of?Comfortable
Yes. Glare is low.
78 at 1 ft · 21 at 2 ft · median 112
Does it flicker?No risk
No, at full power. Dimmed not tested.
What does the light look like?5450K
Cool daylight, decent color.
CRI Re 84 · R9 37 (weak deep reds)
2700K warm7500K cool
All test data
Light outputMeasured at 1 ft and 2 ft
m-EDI
3,430
930 at 2 ft
Lux
4,125
1,120 at 2 ft
CLa
5,810
1,425 at 2 ft
Glare
78
21 at 2 ft
m-EDI 3,430 at 1 ft, 930 at 2 ft
Median 3,43010,000 benchmark2 ft1 ft
Glare 78 at 1 ft, 21 at 2 ft
Median 1122 ft1 ft
SpectrumOutput at the highest setting
Melanopic DER
0.83
m-EDI per lux. Daylight (D65) is 1.0.
CCT
5450K
3 levels
Gap from natural light
27%
Far. Average spectral difference (ASD) from daylight at the same color temperature, 425 to 690 nm.
Lamp outputBody-clock zone (melanopic, CIE S 026)Natural light, same color temperature
FlickerGreen is safe, amber is acceptable, red is past the limit
Full powerDimmed not tested
Percent flickern/a
Flicker indexn/a
SVMn/a
PstLMn/a
Assist Mpn/a
Waveform, 1 second
Waveform not measured.
A flat line near 1.0 means steady light.
Color renderingHow accurately colors and skin tones look under this lamp
CRI Re
84
R9 (deep red)
37
TM-30 Rf
87
TM-30 Rg
98
Neutral saturation
Specifications
- Form factor
- Desktop
- Brightness
- 4 levels
- Color temperature
- 3 levels
- Voltage
- 100-240V
- Cord length
- 5.9 ft
- Mounting
- Keyhole
- Extra features
- Built-in timer, Mountable
- Available in
- United States, Canada, United Kingdom
