Comment on lightbulbs

• Dasus@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  I mean yeah they are RGBWW if you put it like that but wouldn’t RGB already include different temps of white? So all of my bulbs are Hue, and yes, they were somewhat of an investment even though my apt is not that huge. Like 300e total years ago though, for uhmm the basic 250e colour set, 5 e36 bulbs hub and remote, and then later I also bought two e14s.

  But the LED panel I have is actually a 300w growlight. I couldn’t put it on full I’d burn my eyes. But it serves very well as light therapy on the mildest setting. It’s not got any adjustments except a dimmer though.

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  • hikaru755@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    wouldn’t RGB already include different temps of white?

    Well yes, but actually no. You can produce white-looking light with just RGB, but the quality is going to be shit. Sunlight is made up of the whole spectrum of visible wavelengths, while an RGB will only produce a much sparser spectrum with strong peaks at green, red and blue, and not much else. Looking directly into the light you might not be able to tell, but once the light bounces off colored objects things start looking weird compared to natural light. That’s what rgbww lights are fixing by adding wider-spectrum white LEDs into the mix. For white lights, there is a number called the Color Rendering Index (CRI) that tells you how closely a light’s output spectrum resembles natural sunlight. CRI 100 is perfect sunlight, less than CRI 80 is already pretty crappy looking light.

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    • Dasus@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      I sort of knew some of this, I think, but definitely not all of it, nor as succinctly.

      Thanks!

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  • Flames5123@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

    I’ve been rocking my same hue lights for 8 years. I love having blue and red in the same light fixture. Creates a nice night purple with funny shadows.

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    • Dasus@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Yeah I’ve had mine for roughly the same time. It’s kinda annyoing being anywhere without smart lighting. You have to shut off lights before going to bed, instead of shutting them off after you’ve climbed under the covers.

      And having to put on the lights just to go have a piss in the middle of the night? That would wake me up too much. So I just put on a few red low lights to roughly see where things are without waking myself up.

      Then again anyone super into privacy wouldn’t probably love these, as as far as I know, having several WiFi using bulbs on the ceiling also means that anyone with access to the data could actually function as movement sensors. So the metadata Hue has about me (or at least could access if they wanted to) would tell them when I’m in bed or in the kitchen or having guests or whatnot. Apparently it’s based on the attenuation of the signal strength and based on those numbers you can “see” the object moving from the signal strength changes.

      Oh apparently to use it myself I’d need a Hue Pro Bridge, but they came up with the system on the old one. Now the pro version has an analyser in it so makes it work better.

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