Sunlite: Red 1000K A19

1948KAmber
LEDA19E263WPlastic

Sunlite Red 1000K A19 light bulb test results

Amazon

The verdict

A 1948K LED A19 bulb. Its body-clock signal is very low (3% of daylight).

A good pick for the last hours before bed: very little of the light that keeps you alert. Colors look orange under it.

Tested Mar 1, 2023 · handheld spectrometer · how I test

How true do colors look?Not measured

Not measured

4060809095100
How do reds look?Poor

R9 -104

Saturated red: skin, wood, food. 100 is perfect. #85 of 86 white-light bulbs.

-6005090100
What color is the light?Amber

1948K

Sold as 1000K. Gap from natural light 95% (far). Tint -0.1651, leans rosy.

1000K1800K candle2700K4000K6500K
How strong is its body-clock signal?Very low

3% of daylight

Melanopic DER 0.03. Low is easier on sleep at night; high helps you feel alert by day.

00.2 candle0.5 incandescent1.0 daylight

The light

Measured spectrum, 380 to 780 nm, scaled to its peak.

Spectrum
Light color1948K
RosyNeutralGreen
Gap from natural light95%Far. Average spectral difference (ASD) from a blackbody (incandescent-like) light at 1948K, 425 to 690 nm. 0% is natural light. The yellow line on the spectrum.
Melanopic DER0.03Body-clock stimulus per lumen. Daylight is 1.0, a candle about 0.2.

How colors look

The red line pulls out where colors get more vivid and pinches in where they dull. Hover a bin for its numbers.

Color Shift Map
TM-30 Rf31
TM-30 Rg59Slightly dulls colors (100 is neutral)
CRI Ren/a
CRI Ra27
Not measured

Similar bulbs

Still sold, near the same color temperature, same E26 base where one qualifies.

Specs

Power, brightness and efficacy marked "rated" are the manufacturer's numbers. I have not measured them yet.

Brand
Sunlite
Model
Red
Type
LED
Shape
A19
Base
E26
Finish
Plastic
Power (rated)
3W
Dimmable
No
Sold as
1000K
Measured
1948K
Gap from natural light
95% (ASD)
Tested
Mar 1, 2023
Instrument
Handheld spectrometer (before the integrating sphere)
Status
Available