Circadian Optics · $$ · Updated March 3, 2026
Lampu
Ranks #12 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at any setting.
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Is it strong enough?#12 of 57
Close. 85% of the 10,000 lux benchmark at 1 ft.
8,455 m-EDI at 1 ft · 2,400 at 2 ft
Is it comfortable to sit in front of?Standard
Mostly. Moderate glare.
237 at 1 ft · 68 at 2 ft · median 112
Does it flicker?No risk
No, at full power or dimmed.
1.6% modulation at max · 1.6% dimmed
Flicker index
0.0032
SVM
0.003
What does the light look like?5942K
Cool daylight, muted color.
CRI Re 80 · R9 20 (weak deep reds)
2700K warm7500K cool
All test data
Light outputMeasured at 1 ft and 2 ft
m-EDI
8,455
2,400 at 2 ft
Lux
9,770
2,819 at 2 ft
CLa
16,225
3,960 at 2 ft
Glare
237
68 at 2 ft
m-EDI 8,455 at 1 ft, 2,400 at 2 ft
Median 3,43010,000 benchmark2 ft1 ft
Glare 237 at 1 ft, 68 at 2 ft
Median 1122 ft1 ft
SpectrumOutput at the highest setting
Melanopic DER
0.87
m-EDI per lux. Daylight (D65) is 1.0.
CCT
5942K
Fixed
Gap from natural light
30%
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 (2 of 3 (67%))
Percent flicker
1.6% · 1.6%
Flicker index
0.0032 · 0.0033
SVM
0.003 · 0.003
PstLM
0.082 · 0.057
Assist Mp
0.059 · 0.071
Waveform, 1 second
A flat line near 1.0 means steady light.
Color renderingHow accurately colors and skin tones look under this lamp
CRI Re
80
R9 (deep red)
20
TM-30 Rf
84
TM-30 Rg
95
Slightly desaturated (100 is neutral)
Specifications
- Form factor
- Desktop
- Brightness
- 3 levels
- Color temperature
- Fixed
- Power
- 29 W
- Voltage
- 100-240V
- Cord length
- 7.3 ft
- Mounting
- None
- Extra features
- None
- Available in
- United States, Canada
