Comment on Follow up. They fixed the light bulb
PupBiru@kbin.social 1 year agocolour temperature is only changeable when you “mix” other colours in: usually you have cold white and warm white LEDs and you mix them to get whatever temp you want
for commercial, i doubt they’d double the LEDs so you could adjust them… the name of the game in commercial lighting is but what you need, buy it cheap, and don’t pay for things you won’t use
Laticauda@lemmy.ca 1 year ago
There are led bulbs that have variable light temperatures, I have some in my room as we speak. Don’t need multiple bulbs. They’re not that expensive either.
PupBiru@kbin.social 1 year ago
not multiple bulbs no, but those bulbs have multiple LEDs in them… LEDs only have a single colour, but you can produce variable colour (or colour temperature) bulbs by mixing R/G/B or warm white and cold white
philips hue bulbs for example have red, green, blue, warm white, and cold white LEDs so they can mix any colour or colour temperature
to have variable colour temperature requires a warm white and a cold white LED that get mixed, so they’re always being used at 50% or less (because 50% emission on both is the same brightness as 100% of 1)… commercial fixtures are likely to not give that option and only include a single LED at fixed colour temperature to avoid 2x the parts
Scubus@sh.itjust.works 1 year ago
It gets funnier when you realize that warm white is physically colder than cool white as well. And vice versa.