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Lastar · $ · Updated April 8, 2026

CM018

Ranks #52 of 57 for melanopic output, below the 10,000 lux benchmark at 1 ft. No flicker at full power.

Amazon

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A rectangular white light therapy lamp with rounded corners, featuring a stand and three touch buttons at the bottom for power and brightness adjustment, set against a light background.
Is it strong enough?#52 of 57

No. Only 18% of the 10,000 lux benchmark at 1 ft.

1,765 m-EDI at 1 ft · 445 at 2 ft

1,0003,00010,000 benchmark40,000
Is it comfortable to sit in front of?Comfortable

Yes. Glare is low.

93 at 1 ft · 24 at 2 ft · median 112

101001,0003,200
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 78 · R9 20 (weak deep reds)

2700K warm7500K cool

All test data

Light outputMeasured at 1 ft and 2 ft
m-EDI
1,765
445 at 2 ft
Lux
1,980
505 at 2 ft
CLa
2,920
690 at 2 ft
Glare
93
24 at 2 ft

m-EDI 1,765 at 1 ft, 445 at 2 ft

Glare 93 at 1 ft, 24 at 2 ft

SpectrumOutput at the highest setting
400450500550600650700750Wavelength (nm)1.00451 nm490 nm melanopic peak
Melanopic DER
0.89
m-EDI per lux. Daylight (D65) is 1.0.
CCT
6650K
Fixed
Gap from natural light
31%
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 not tested

Percent flicker
n/a
Flicker index
n/a
SVM
n/a
PstLM
n/a
Assist Mp
n/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
78
R9 (deep red)
20
TM-30 Rf
83
TM-30 Rg
95
Slightly desaturated (100 is neutral)
Specifications
Form factor
Desktop
Brightness
5 levels
Color temperature
Fixed
Cord length
4.9 ft
Mounting
None
Extra features
Built-in timer
Available in
United States

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