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  1. count zero

    Biden & Harris :)

    The moment the purveyors of justice are the ones abusing and murdering your people, any social contract is being taken from you.
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    Biden & Harris :)

    At the same time you hint at your concept of worthlessness: Being a country hick, without friends that mirror your intellect or timeless values. You'd hate yourself if you had a sliver of a reason to believe that about yourself. Why would it be so painful to share any of these common traits?
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    Biden & Harris :)

    If you're wrong on all three counts, it means that you're projecting your own lack of imagination, right?
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    Biden & Harris :)

    Biden & Harris are the DNC's way of giving Trump a fighting chance. He's got no visions and was complicit in every foreign policy disaster of the past 40 years. She's about the least likeable black woman within a 100 mile radius.
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    DiY LEDs - How to Power Them

    otoh, I just talked to a guy who sold 1000s of setups and is certain in his opinion. I'd like to go by the opinion of professional electricians. Maye you are one? I'm a hobbyist, can see arguments for either.
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    reducing exhaust line?

    Your math checks out. It's definitely worse than havin a bigger hole in the wall. In absence of said hole, it should be an okay moove.
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    reducing exhaust line?

    I'm thinking about doing the same thing. Yes, air velocity will increase, but a fan of the smaller size will need higher rpm to reach the same velocity. And hence produce even more noise.
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    DiY LEDs - How to Power Them

    Just talked to LED-Tech.de again, they don't view the high voltage of series connection as particulary dangerous. If you have a fast european fuse box and grounding on the lamp's chassis, it's gonna hurt like hell but not be lethal. Don't do it, if you have children in the same home.
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    DiY LEDs - How to Power Them

    Had a very short chat with them. They said that in series is generally preferable. But I didn't tell them that I was gonna use 12 strips. And did some research, voltage wise I should stay lower if we take safety into account. Thx Rocket Soul. Can't find anything 60 or 80V, so it seems like I...
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    DiY LEDs - How to Power Them

    Well, he can try running parallel. So, you know the voltage of meanwell drivers just by looking model number? You might be exactly who I've been looking for :D Can you check my math 6 posts up?
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    DiY LEDs - How to Power Them

    I'd advise against it, at least not without intensive testing, could be dangerous. I think you'd have to measure the voltage drop on each board at every load scenario to make sure it's evenly balanced.
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    DiY LEDs - How to Power Them

    There's 2 sizes of holes on the boards, m5 for the bigger ones in the corners, m4 for the rest. Judging by my HLG 65s.
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    DiY LEDs - How to Power Them

    Hey guys, gals, can somebody have a look at my driver config? adding a bit of LED to a 1,8m² 2x 315w CMH flower area. let's do a 320W white channel: 12x 3500k LM301B Strips, approx. 20V each. A whopping 240V, if I do the strips all in series. It's the volts that tickle us, but the amperes that...
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    Anybody tried making a DIY inline UV air cleaner with UV diodes?

    No, LED can't currenly do germicidal applications. https://www.ledsmagazine.com/blogs/article/14178229/expert-webcast-speaker-sets-expectations-with-regard-to-uvc LED can only do one red and one blue efficiently. and white only via phosphors like we had in your old CRT TVs. You could argue...
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    Adding more for efficiency?

    I think it should be useless in most scenarios. Efficiency increases about 10%. Buying 2 boards and another driver gives you the same efficiency but twice the light. better deal in most cases.
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    Quick Glance at my LED Driver Specs

    I'm adding a bit of LED to a 1,8m² 2x 315w CMH flower area. Been trying to figure out LED drivers for a day now, is suprisingly hard. Okay, let's do a 320W white channel: 12x 4000k LM301B Strips, approx. 20V each. A whopping 240V, if I do the strips all in series. It's the volts that tickle us...
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    plasma light

    It's neither terribly efficient nor useful. Guy I know had one for a while whitout any use afaik.
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