• ᕙ(⇀‸↼‶)ᕗ@lemm.ee
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      27 minutes ago

      me too but it looks like a never ending horror. will the bottles fall when you have a party and that one drunk fuck thinks its cool to shake it a little or will it just ruin the oil/wax mix? will i sell my first born to pay for the power bill? does this pollock-esk mix of colors do the idea of a lava lamp justice? and so on…

  • CaptPretentious@lemmy.world
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    2 days ago

    If those are regular old school incandescent bulbs connected to six lava lamps, and that light fixture is connected to a dimmer switch you may want to rethink that. You may want to check what the wattage for your dimmer is and if you don’t know I would recommend staying at or below 300 Watts total (more as a personal rule of thumb).

    • ilovededyoupiggy@sh.itjust.works
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      2 days ago

      Could certainly be different here because chandelier, but my full size lava lamp uses a little 25w appliance bulb, so six of them shouldn’t be more than 150w total.

        • Jumpingspiderman@lemmy.world
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          22 hours ago

          They are probably serial so the resistance would be distributed between the 6 loads and thus the heat produced would be similarly dispersed. Hence even 150 W of power would be split between 6 25 W power draws.

          • jjagaimo@sh.itjust.works
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            47 minutes ago

            Actually they should be connected in parallel. Because tungsten resistance increases with temperature, if one bulb starts out with a slightly higher resistance, it will get hotter faster and you will end up with inconsistent lighting or damaging that one bulbs (if not designed for operating at 120V nominal. 6 ideal bulbs in series would operate at 20V which would necessitate lower resistance and would explode at 120v). The higher temp and resistance would cause it to generate a higher than normal voltage drop/current/power, likely much more than the designed power, and the other bulbs may be much dimmer in comparison.

            Also if one bulb drops out / blows it will take out all 6. Either way the power (150W) would be the same.

      • hovercat@lemmy.blahaj.zone
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        21 hours ago

        Wait, seriously? I figured they used a much more power hungry bulb! I’ve wanted to get one for a while but I’m always so concerned about energy efficiency I’ve held off buying one because I figured it was like 150W

  • toofpic@lemmy.world
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    2 days ago

    We just bought a lavalamp. An oldschool-looking one, like at the op’s picture.It’s a great investment.
    As one of the main points, you have a measurable answer on a question “is this movie interesting?”: the lamp stands near the tv, so if you fing yourself watching the lamp, not the movie, tou know the answer.
    The ultimate “better than Twilight” indicator!

    • hovercat@lemmy.blahaj.zone
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      21 hours ago

      They’re 25W each, so at 150W and ~20¢/kWh in my area, you’re talking maybe 35¢ per day if it’s on 12hrs a day. Not insane, and probably not running it nearly that often/long.

    • ShellMonkey@lemmy.socdojo.com
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      2 days ago

      Old style ones where just a standard light bulb, not sure how the modern ones work. So no more than a regular light fixture, just less light output for the wattage.

      • unexposedhazard@discuss.tchncs.de
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        2 days ago

        Lava lamps function by heating the wax/goop in the glass bottle to the point where it becomes liquid. So you can either use an old style light source that generates that heat (thats how they still work afaik) or you use an LED + a separate heat source.

        So total energy usage could only be reduced in the LED version by more efficiently transferring heat directly to the glass. The light bulb doesnt have direct contact so there is a layer of insulating air in between which means lots of heat goes to the room instead of the glass.

        A third idea would be a different wax/goop that is just always liquid, but that doesnt work well because the movement of the bubbles comes from the wax getting heated at the bottom, which makes it rise to the top where it cools down and then drops down again.

        • ShellMonkey@lemmy.socdojo.com
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          2 days ago

          Yeah, I still have an old one around. Was just guessing that maybe with the old incandescent bulbs becoming a rare thing maybe they switched to LED and a dedicated IR bulb like they have for reptile tanks. Could make for some interesting effects since you could change the light color that way too.

      • merari42@lemmy.world
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        2 days ago

        Have a newer one from 2019.They use the least energy efficient bulbs that are still for sale in the EU. Energy class G.