Led colour

[333rocky333]

Apart from contacting manufacturer is there a way of telling colour from the attached codes, thanks.
It's a regor 6 fitting

 

[Wayners]

Reading data it's 22K, 27K, 3K, 4K, 5K, 65K .

K = Kelvin

65k is white light

3 and 4k is yellow light.

That light should be adjustable so you can pick the colour you want

 

[Rodders53]

Those numbers listed by Wayners (I can't easily read the screenshots) are randomly completely 'wrong' (by the makers not W) but can be interpreted...

65K = 6500 Kelvin and daylight clear blue sky.

5K= 5000K is more overcast daylight.

4K= 4000 k is a 'neutral' white, warmer tones than the above.

3K= 3000K is a warm white and similar to tungsten halogen incandescent lamps

27K = 2700 K is warm white and the colour temperature TV studio lighting is set to to balance the cameras (in days of old). Roughly what a non-halogen tungsten lamp would give.

22K= 2200 K would be almost candle-light warm.

So that fitting covers pretty much the whole range of colour temperatures lamps are available in.
Whether the one fitting can be set to give any CT or if they need ordered in for a specific one might need checking - if important.

 

[333rocky333]

Thanks, yes them figures are on the website and it seems you order the colour you require, they are not colour selectable as far i know, because we have had a quote for the 6500k. version
To me it seems 5000k or 6500k but due to access there currently to hard to take one down, the main labels worn out..
I dont understand why they cannot print it on the tape, i assune they make the tape bare and then fit the relevant colour leds on it..
There round a building so matching is important

 

[bernardgreen]

 

[aveatry]

Those numbers listed by Wayners (I can't easily read the screenshots) are randomly completely 'wrong' (by the makers not W) but can be interpreted...

65K = 6500 Kelvin and daylight clear blue sky.

5K= 5000K is more overcast daylight.

4K= 4000 k is a 'neutral' white, warmer tones than the above.

3K= 3000K is a warm white and similar to tungsten halogen incandescent lamps

27K = 2700 K is warm white and the colour temperature TV studio lighting is set to to balance the cameras (in days of old). Roughly what a non-halogen tungsten lamp would give.

22K= 2200 K would be almost candle-light warm.

So that fitting covers pretty much the whole range of colour temperatures lamps are available in.
Whether the one fitting can be set to give any CT or if they need ordered in for a specific one might need checking - if important.

I would take issue on the descriptions involving the word "white"
Like
27K = 2700 K is warm white
4K= 4000 k is a 'neutral' white
Neither of them are white they are both yellow.
A neutral white is more like 5500 k
Also maybe its the cheaper end of GU10s but they are not always the exact colour they say they are, having had to replace 1 in a fitting already having 6550k with another marked as 6500k you can see the difference,

 

[Rodders53]

I would take issue on the descriptions involving the word "white"

What did you do when the choice was pretty much exclusively incandescent in the home and 3000K or less? Pretty much all the lighting makers use the same terms of warm white etc.,..

https://home-of-led.com/the-science-of-led-light-colors/ explains a bit how white leds are produced.

Some of the white LED colours seem to use excited phosphors (as per fluorescent) so not spectrally pure and the mix and layering of the main semiconductor electroluminescent materials will likely be manufacturer dependent (and not entirely repeatable batch to batch, even).

Probably why on needs to buy enough spares on a large install to keep colour matched and specifically ensure the colour rendering index is not messed up between adjacent lamps when replaced.

Dunno if one can hire a suitable colorimeter to measure the CT of a sample. If ultra important it may be a matter of replacing all the lamps that matter in one hit (as would have been done for, say, fluorescent tubes).

 

[morqthana]

There round a building so matching is important

Plan B - don't try to illuminate the outdoors.

If these lights were purely functional, and genuinely necessary, nobody would be fussed if they weren't all exactly the same colour. The fact that it's considered important that they are the same tells me they are decorative.

Plan B.

 

[morqthana]

Strange mix of human and robotic processes.