Lastar · $ · Updated March 4, 2026
CM020B
Ranks #41 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at full power.
Affiliate disclosure: this page contains affiliate links. I may earn a commission at no extra cost to you.
Is it strong enough?#41 of 57
No. Only 26% of the 10,000 lux benchmark at 1 ft.
2,635 m-EDI at 1 ft
Is it comfortable to sit in front of?Standard
Mostly. Moderate glare.
123 at 1 ft · median 112
Does it flicker?No risk
No, at full power. Dimmed not tested.
0.1% modulation at max
Flicker index
0.0001
SVM
0.003
What does the light look like?7000K
Cool daylight, muted color.
CRI Re 79 · R9 20 (weak deep reds)
2700K warm7500K cool
All test data
Light outputMeasured at 1 ft and 2 ft
m-EDI
2,635
n/a at 2 ft
Lux
2,830
n/a at 2 ft
CLa
4,410
n/a at 2 ft
Glare
123
n/a at 2 ft
m-EDI 2,635 at 1 ft
Median 3,43010,000 benchmark1 ft
Glare 123 at 1 ft
Median 1121 ft
SpectrumOutput at the highest setting
Melanopic DER
0.93
m-EDI per lux. Daylight (D65) is 1.0.
CCT
7000K
4 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 flicker
0.1%
Flicker index
0.0001
SVM
0.003
PstLM
0.038
Assist Mp
0.023
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
79
R9 (deep red)
20
TM-30 Rf
85
TM-30 Rg
96
Slightly desaturated (100 is neutral)
Specifications
- Form factor
- Compact / travel, Desktop
- Brightness
- 5 levels
- Color temperature
- 4 levels
- Power
- 12 W
- Voltage
- 100-240V
- Cord length
- 6 ft
- Mounting
- None
- Extra features
- Works with a smart plug, Built-in timer
- Available in
- United States, Canada, United Kingdom, European Union, Australia, Ships globally
