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Circadian Optics · $$ · Updated March 3, 2026

Lumos 2.0

Ranks #31 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at any setting. Glare is harsh up close.

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A modern, foldable LED desk lamp with a slim, rectangular design in white and gray, shown partially opened against a light blue background.
Is it strong enough?#31 of 57

No. Only 34% of the 10,000 lux benchmark at 1 ft.

3,390 m-EDI at 1 ft · 900 at 2 ft

1,0003,00010,000 benchmark40,000
Is it comfortable to sit in front of?5th harshest

Harsh up close.

440 at 1 ft · 118 at 2 ft · median 112

101001,0003,200
Does it flicker?No risk

No, at full power or dimmed.

2.2% modulation at max · 0.9% dimmed

Flicker index
0.0028
SVM
0.003
What does the light look like?6400K

Cool daylight, decent color.

CRI Re 82 · R9 30 (weak deep reds)

2700K warm7500K cool

All test data

Light outputMeasured at 1 ft and 2 ft
m-EDI
3,390
900 at 2 ft
Lux
3,740
1,000 at 2 ft
CLa
6,040
1,450 at 2 ft
Glare
440
118 at 2 ft

m-EDI 3,390 at 1 ft, 900 at 2 ft

Glare 440 at 1 ft, 118 at 2 ft

SpectrumOutput at the highest setting
400450500550600650700750Wavelength (nm)1.00453 nm490 nm melanopic peak
Melanopic DER
0.91
m-EDI per lux. Daylight (D65) is 1.0.
CCT
6400K
Fixed
Gap from natural light
33%
Far. Average spectral difference (ASD) from daylight at the same color temperature, 425 to 690 nm.

Lamp output

FlickerGreen is safe, amber is acceptable, red is past the limit

Full powerDimmed (2 of 3 (67%))

Percent flicker
2.2% · 0.9%
Flicker index
0.0028 · 0.0023
SVM
0.003 · 0.003
PstLM
0.112 · 0.051
Assist Mp
0.063 · 0.038
Waveform, 1 second
1.000 s1 s

A flat line near 1.0 means steady light.

Color renderingHow accurately colors and skin tones look under this lamp
CRI Re
82
R9 (deep red)
30
TM-30 Rf
83
TM-30 Rg
97
Slightly desaturated (100 is neutral)
Specifications
Form factor
Desktop
Brightness
3 levels
Color temperature
Fixed
Power
12 W
Voltage
100-240V
Cord length
7.3 ft
Mounting
None
Extra features
None
Available in
United States, Canada, United Kingdom

If glare is a dealbreaker

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