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Chroma · $$$$ · Updated July 3, 2026

Sky Portal 2.1

Ranks #16 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at any setting.

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A round, white ring light on a black stand is centered against a plain, light gray background. A black power cord hangs from the light.
Is it strong enough?#16 of 57

Close. 62% of the 10,000 lux benchmark at 1 ft.

6,215 m-EDI at 1 ft · 1,915 at 2 ft

1,0003,00010,000 benchmark40,000
Is it comfortable to sit in front of?6th gentlest

Yes. Glare is low.

51 at 1 ft · 16 at 2 ft · median 112

101001,0003,200
Does it flicker?No risk

No, at full power or dimmed.

0.1% modulation at max · 1.4% dimmed

Flicker index
0.0003
SVM
0.003
What does the light look like?7400K

Cool daylight, decent color.

CRI Re 86 · R9 90

2700K warm7500K cool

All test data

Light outputMeasured at 1 ft and 2 ft
m-EDI
6,215
1,915 at 2 ft
Lux
5,285
1,620 at 2 ft
CLa
11,425
3,100 at 2 ft
Glare
51
16 at 2 ft

m-EDI 6,215 at 1 ft, 1,915 at 2 ft

Glare 51 at 1 ft, 16 at 2 ft

SpectrumOutput at the highest setting
400450500550600650700750Wavelength (nm)1.00477 nm
Melanopic DER
1.18
m-EDI per lux. Daylight (D65) is 1.0.
CCT
7400K
Continuous
Gap from natural light
24%
Moderate. 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 (Halfway (50%))

Percent flicker
0.1% · 1.4%
Flicker index
0.0003 · 0.0005
SVM
0.003 · 0.003
PstLM
0.026 · 0.016
Assist Mp
0.017 · 0.011
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
86
R9 (deep red)
90
TM-30 Rf
90
TM-30 Rg
97
Slightly desaturated (100 is neutral)
Specifications
Form factor
Desktop
Brightness
Continuous
Color temperature
Continuous
Power
38 W
Voltage
100-240V
Cord length
8.6 ft
Mounting
5/8 in receiver
Extra features
Works with a smart plug, Mountable
Available in
United States, Canada, United Kingdom, European Union, Australia, Ships globally

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