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lightbulbs (thelemmy.club)
submitted 7 months ago by to c/lemmyshitpost@lemmy.world
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[–] 22 points 7 months ago (10 children)

Part of my job is selling lighting.

The following conversation takes place at least once a day without falter:

X: I’d like one light like this please (puts some form of light on the table)

ME: ok (goes through the script to make sure they know what they want/it’s compatible/…yaddayadda).

X: oh and it needs to be warm in colour.

ME: 2700k got it.

X: yes, but like warm right? Because it’s led.

(Variant: the rando looking for something small for his toilet. “Oh you know, something like 18000 lumens and 60000k”

You value your eyes at all?)

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  • [–] 13 points 7 months ago (6 children)

    "You want cold white or warm white?"

    "I need a cold light source, like an LED. I'm afraid the fixture would melt if I put incandescent in there." (Yes, some E14 fixtures in cheap plastic bathroom mirrors etc. only take up to 10-20 W and have a warning sticker)

    "What, higher temperature is colder?" (It's not their fault though that in nature, white and blue things 🧊 are generally colder than yellow and orange things 🔥)

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  • [–] 13 points 7 months ago* (3 children)

    Do people actually confuse color temperature with operating temperature? I wouldn't want any lights in my house if their operating temperature was ≥2700 K. I want the room to be bright, but not if that means melting the steel beams in the ceiling.

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  • [–] 10 points 7 months ago (2 children)

    The colour temperature of an incandescent lamp is, exactly and by definition, its operating temperature.

    A 2700K lightbulb will not melt steel. The glass is not that hot (you can tell because it's not glowing itself). In any case, it's really power that matters - a small object at 2700K will not damage steel if it's not being continuously heated; it needs to be heated at a rate which brings the steel above its melting point before the heat can dissipate.

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  • [–] 6 points 7 months ago (1 child)

    “Your fixture won’t work with led for dimming”

    confusion

    nervous laughter

    disbelief

    “You’ll have to replace the driver”

    same cycle but even more intense

    head explodes

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  • [–] 5 points 7 months ago (2 children)

    Take them up on their offer of lumen output and show off one of these bad boys.

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  • [–] 2 points 7 months ago (1 child)

    That's a neat form factor.

    I have something like this mounted in a torchiere floor lamp. high output (something like 15000LM) and a cool color temp (6500K I think). My office has daylight when I turn it on, but it's aimed up, indirect and high enough it's not generally in line of sight. Probably would have used the bulb above if I could find cob lights when I bought this one.

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