We have a city owned tree in front of our house and it’s smaller than all the other trees on the street. It also has some bare branches and twigs on it and is a bit patchy overall. (Zoom in on the very top for example and you’ll see it has a lot of bare twigs)
I plan to put some ground cover plants to help the soil from drying out but need to ask my neighbor to not put his bikes there first. I’m watering ever other day.
Hi Reddit,
TL;DR: The new Kajplats bulbs are much more yellow, with weird peaks in the LEDs spectra, compared to the old white Trådfri bulbs.
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I'm not very happy with the color of the new IKEA white color, the Kajplats 1521 lm for my hallway. I've had Trafri ones in my house for years and thought the color was fine- but these are too....yellow and just look off to me. I'm repainting a wall a nice dark blue and the difference between how the old/new lights illuminate this color is striking, but I couldn't really explain why.
Next to this, since I got the new home hub last fall I noticed that my old Trafri bulbs also don't actually change between cool white colors.
This all was based on a feeling, so I borrowed my work's spectrometer + integrating sphere to measure the output color from each bulb type I had:
Trådfri bulb E27 WS globe opal 1055lm "Old bulb" led2003g10
Kajplats E27 WS globe 1521 "New Bulb" led2408g10
Trådfri E27 CWS 806lm (full color) led1924g9
I did these measurements on the latest FW version on 2026-01-29 for all bulbs and the ikea dirigera home hub. I controlled it from the IKEA home app to change color, and sometimes dimming status when needed.
The plots below show the intensity of light at every wavelength. I put a rainbow color bar below the plots to help identify the peaks. To collect this data, I borrowed an Avantes spectrometer + integrating sphere for this work, also running the latest firmware and did a background-subtraction and integration time calibration before each measurement to keep a good S/N. The bulb was about 1m from the 1cm diameter circular aperture of the integrating sphere. So- NOTICE that the y-axis/measurements below are not calibrated for the output of the full bulb! They can be compared between color changes, and between bulbs (since I used the same setup) but this does not represent the full luminosity output integrated over all output directions.
Here's what I learned:
This spectrum can be broken down into its two LED components. Notice how nice and smooth these spectra are- this roughly approximates the curves we expect to see in a blackbody radiation light source.
For the Real Nerds among us, here are the spectral weights for all the colors. Obviously, the weights do not change between the first four spectra
Peaky behavior or the newer white bulb
Again, we see that the spectrum can be decomposed into to LEDs, one that is peaky and one that is smoother. This bulb was a bit harder to isolate into to individual spectra- but I think it also is represented well enough by 2 component LEDs:
In the component tables we indeed see a nice handoff between the two LEDs.
Conclusions white bulbs:
The ratio of red-green region / blue region is very different between the two bulbs for the warmest tone. This would make the new bulbs appear much more yellow than the old bulbs (since yellow is the absence of blue) and is likely why the new bulbs make my blue wall look black/colorless.
you only get extra brightness from the new LED bulb in the last 25% of the dimming settings.
That's it for the white lights. let me know if you see more signals in the comments :)
Bonus: Tradfri Color Bulb
I did the same component analysis on the old tradfri color bulb.
Note, I did physically have the full color Kajplats when measuring but I couldn't get it to pair for MONTHS. It is sadly excluded from this dataset. I had tried the IKEA app, Apple home hub, home assistant, many resets, remote pairing, returning it for a new one, and still not getting it to work. It now works after a thread issue was fixed in FW.
First all the spectra. The color of the line is the color I extracted from the IKEA app and had selected when measuring.
These spectra could best be broken down into four component LEDs
Principle component analysis, showing that 3 LEDs wasn't enough to fit all the color spectra, but
Do with that what you want.
Hi All,
We're looking for some alternate ideas for our kitchen layout. I'm a bit worried about the looooong feeling this would give with our design, and that there isn't that "triangle" with the stove/sink/fridge. Would you think along with us?
Our request here is purely about placement of cabinets/appliances. we will tackle the materials/design next. This is the ground floor of a monument house in the Netherlands, built in 1617. it has beautiful oak beams/joists that are need to be protected, but we plan to pick colors/materials that tie together the garden and the house's natural character.
The photo attached is our current best design in an overhead view, and I give some relevant details in text below.
- Putting the sink on the island would be difficult to install. We were advised by our underfloor heating installers not to bring waterlines under the floor to the island as there's a risk of legionella. The sewage line would also be difficult to dig to there.
- The stove is also hard to put on the island. I prefer there to be no hanging ventilation in the middle of the room, and there is no space below the floor to do downward suction ventilation with air extraction. Recirculation isnt an option because the exposed beams of this house require that the moisture of cooking be moved outside.
- There's a garden outside the doors at the top of the photo, our current design for the garden is the second photo. we are getting a large folding glass wall there and hope to pull the kitchen a bit outside.
Related to the garden, there are two lines of sight that may be worth protecting (these are shown on the second image with black dotted lines)
(but maybe that's a bad idea?)
We have generous walkways around all the cabinets now- about 1.3meters; but it feels so looooonnnggg
any feedback, experience, or ideas welcome :)
- Oude Singel Ladies
