Lastar · $ · Updated April 8, 2026
CM020
Ranks #42 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?#42 of 57
No. Only 26% of the 10,000 lux benchmark at 1 ft.
2,620 m-EDI at 1 ft · 645 at 2 ft
Is it comfortable to sit in front of?Standard
Mostly. Moderate glare.
101 at 1 ft · 25 at 2 ft · median 112
Does it flicker?No risk
No, at full power. Dimmed not tested.
What does the light look like?6650K
Cool daylight, muted color.
CRI Re 77 · R9 11 (weak deep reds)
2700K warm7500K cool
All test data
Light outputMeasured at 1 ft and 2 ft
m-EDI
2,620
645 at 2 ft
Lux
2,945
735 at 2 ft
CLa
4,375
980 at 2 ft
Glare
101
25 at 2 ft
m-EDI 2,620 at 1 ft, 645 at 2 ft
Median 3,43010,000 benchmark2 ft1 ft
Glare 101 at 1 ft, 25 at 2 ft
Median 1122 ft1 ft
SpectrumOutput at the highest setting
Melanopic DER
0.89
m-EDI per lux. Daylight (D65) is 1.0.
CCT
6650K
Fixed
Gap from natural light
29%
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
77
R9 (deep red)
11
TM-30 Rf
84
TM-30 Rg
95
Slightly desaturated (100 is neutral)
Specifications
- Form factor
- Desktop
- Brightness
- 5 levels
- Color temperature
- Fixed
- Voltage
- 100-240V
- Cord length
- 4.8 ft
- Mounting
- None
- Extra features
- None
- Available in
- United States, Canada, United Kingdom, European Union, Australia, Ships globally
