No flickerDiscontinuedIKEA Tradfri 205.182.47 A15 tunable white smart bulb
The verdict
A tunable white A15 bulb, now discontinued. Its white light is excellent (CRI 94, Rf 92), it dims down to 9.8 lm, its warmest white is 2155K, and I measured no flicker risk.
A solid all-round bulb with no major weakness in my tests.
CRI 94 · Rf 92
Averaged over its warm, neutral and cool settings. #3 of 119 bulbs.
Down to 9.8 lm
Brightest white 423 lm. #65 of 119 bulbs.
Warmest white 2155K
mel-DER 0.29 at that setting. Daylight is 1.0. #52 of 119 bulbs.
No risk at full, no risk at half
Graded against IEEE 1789.
Full brightnessHalf
The white settings
Pick a setting. Everything below follows it.
How colors look
At the selected setting. The red line pulls out where colors get more vivid and pinches in where they dull.
Flicker
Measured with a flicker meter at full and half brightness.
FullHalf
Where it ranks
All 120 bulbs. Left dims lower, up renders color more truly. Tap a dot to open that bulb.
This bulbOther bulbsHigh flicker riskDiscontinued
Beat it on both
No bulb I have tested dims lower and renders color more truly. This one is on the frontier.
Setup and specs
- Color mode
- Tunable white
- White range
- 2150K to 4000K
- Shape
- A15
- Base
- E12
- Dimming curve
- Logarithmic
- Max power
- 4 W
- Weight
- 31 g
- Firmware tested
- 1.1.20
- Tested
- Aug 12, 2024
- Features
- Power-loss recovery