LED's, which light color have you chosen?

We have "daylight" lamps at work, so I am quite "spoiled" when it comes to lighting while working. The closer we are to "daylight" lamps, the more pleasant it is in my opinion. In the kitchen, we have a 1,000 lumen LED. I really don't remember the kelvin, but with daylight, we are at around 5,500 if I remember correctly. However, we only used a simple, inexpensive LED lamp from the hardware store and not a full spectrum one. It is completely sufficient for us. My husband is thrilled and I am also satisfied. You can clearly tell the difference to full spectrum if you know it and are regularly confronted with both. It is quite bright, we live on the first floor and with it, we even illuminate about 400 cubic meters of garden fairly well right in the middle of the night. The buffet is now placed where most of the light falls, and we actually skipped the garden lighting in that area :-o I only mention this in case you have to be considerate of neighbors, it is really super bright and white, it can really sting in the eyes at first :-D ;-) Since my husband also likes to work in dim light sometimes, we also stuck a small LED strip under the kitchen cabinet. But a dimmable lamp would be a simpler, quicker solution here. For that, we installed a new socket on the cabinet and put in a new light switch.

So in the living environment, 2700K is recommended. In some places, 3000K may still appear "white." Since the luminaires also have an impact on well-being (Google HCL - Human Centric Lighting), it’s worth taking a few minutes to consider where to install which Kelvin level.

Just now came the example of 4000K in the bathroom (to make it nice and white, which I find creepy in that area): however, it also means that if you stumble into the bathroom at night, half asleep, just to quickly use the toilet, you get a "full blast" of bluish (i.e., activating) light right in your face. You have to like that.
Now some might say: yeah, you can overestimate that – but even that can have effects! Namely, that you become "more awake" than with luminaires with lower Kelvin.
By the way, HCL luminaires usually have a spectrum ranging from 2700K to 6500K – so even 5500K does not yet correspond to daylight. You can notice differences, especially at the workplace – when exposed to the light for longer periods!

Regarding the color rendering index: anything above 80 is recommended. Below 80 is unacceptable. Everything above 80 is on the one hand hard to find, on the other hand usually expensive and in my opinion unnecessary for private use. Also, the differences are extreme in a direct comparison. Without having a luminaire with a different index hanging right next to it, it’s hard to tell.

These values are important (always given with RA – German for color rendering index ;) or as CRI (Color Rendering Index), especially in shop areas. A red blouse illuminated by luminaires with CRI80 looks different red compared to one illuminated by CRI90. The luminaire with a CRI close to 100 shows the color closest to daylight.

Maybe one could consider using a light source with CRI90 in a dressing room, for example. That might make sense. For everything else, you can do without it.

A little excursion into lighting technology ;)

I like to learn a lot about lighting technology. Bring it on

do you have a bulb with 1000 lumens or how should I imagine that?

I like learning a lot about lighting technology. Bring it on

you have a bulb with 1000 lumens or how should I imagine that?

If you google something, you will find a gentleman who has spent much of his life investigating LED bulbs; he has also written reports about it. The result was, from my memory, that Ledon is good and high-priced for E27. Ikea can be quite good and is top in price. Civililight is unbeatable in color rendering. Finished lamps from Blopp also have, in my opinion, a good CRI value.

A long lamp (100x10cm) with LED, white light. It looks somewhat like a typical office lamp in a nice casing :-D We didn’t do any fancy stuff in the kitchen. It visually almost disappears into the ceiling because it is only about 3cm high. Our kitchen is long and the ceiling is suspended, so we decided on this shape.

Most of my lamps (approx. 80) are from Ledon. Due to the large number of our lights, I ordered several different bulbs to try out. Especially in the kitchen... No, actually everywhere, Ra > 90 is a requirement for me. Food looks downright unappetizing when using cheap LEDs for kitchen lighting.