Yuji: CRI-MAX 5600K A19
Yuji CRI-MAX 5600K A19 light bulb test results
The verdict
A 5740K LED A19 bulb, now discontinued. Its color rendering is very good (CRI 92, R9 96) and its body-clock signal is very high (96% of daylight).
A strong daytime light. Too stimulating for the last hours before bed. It is no longer sold.
CRI 92 · Rf 87
CRI Re, the average of all 15 samples (Ra 93). #46 of 84 white-light bulbs.
R9 96
Saturated red: skin, wood, food. 100 is perfect. #10 of 86 white-light bulbs.
5740K
Sold as 5600K. Gap from natural light 18% (moderate). Tint +0.0019, close to neutral.
96% of daylight
Melanopic DER 0.96. Low is easier on sleep at night; high helps you feel alert by day.
The light
Measured spectrum, 380 to 780 nm, scaled to its peak.
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.
Where it ranks
Every white-light bulb I have tested, in its own light color. Left is warmer, up renders color more truly. Tap a dot to open that bulb.
This bulbOther bulbsFaded: discontinued
Truer color, same color temperature
No bulb I have tested near this color temperature renders color more truly. This one is the best I have measured here.
Similar bulbs
Still sold, near the same color temperature, same E26 base where one qualifies.
Same line, other versions
Other Yuji CRI-MAX bulbs I tested.
Specs
Power, brightness and efficacy marked "rated" are the manufacturer's numbers. I have not measured them yet.
- Brand
- Yuji
- Model
- CRI-MAX
- Type
- LED
- Shape
- A19
- Base
- E26
- Finish
- Plastic
- Power (rated)
- 11W
- Brightness (rated)
- 1,100 lumens
- Efficacy (rated)
- 100 lumens per watt
- Dimmable
- Yes
- Sold as
- 5600K
- Measured
- 5740K
- Gap from natural light
- 18% (ASD)
- Tested
- Jun 17, 2023
- Instrument
- Handheld spectrometer (before the integrating sphere)
- Status
- Discontinued