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Grow Room Design & Setup

Blackstar 240W LED Dissected and Upgraded!

in the

The Grow Room

forums; So after cursing DHL and Newegg I realized I hadn't checked the mail in several days and, of course, there ...
  1. #11
    Able To Roll A Joint Able to roll a joint meharmon's Avatar
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    So after cursing DHL and Newegg I realized I hadn't checked the mail in several days and, of course, there were the fans. The normal fans were very loud (I'll guess around 55-60db), while the new ones are close to 30dB, which is less than my 16" oscillating fans on low speed. The new fans also draw 40% less power, have roughly the same airflow. On a side note, LED manufacturers should use 120mm fans instead of 80mm. I could put 2 in place of these 3 fans in the Blackstar and be pushing more air over with less noise. /facepalm
    Also, like an idiot, uh, I mean "in the name of science" I discovered that when you short circuit it, the last LED on the negative side (black wire) gets sacrificed. A new solder later and we're back in business! Pics coming soon, I was playing with all sorts of wacky designs for this thing (outside in, inside out looked cool!) so I'll post pics of normal configuration once I finish putting it together later today. Cheers!

  2. #12
    Teaching How To Roll Mr. Ganja Po boy's Avatar
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    Florida - high heat and humidity - help
    Does anyone have any way I can dry my autos that will be ready in a couple of weeks. Can't bring into the house during the drying period and am worrying about getting mold. I know the lower heat and humidity are best but I am stuck with few options. Any help highly (no pun intended) appreciated.

  3. #13
    Able To Roll A Joint Able to roll a joint meharmon's Avatar
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    Default Fin!

    OK all done... Like I said earlier, I should have left the film and paste alone, that stuff caused major headaches. But, I ended up with a dot-grid of Arctic Silver 5 paste above and below the film, so it worked out anyhow.
    Here's the salvaged heat sinks, pasted and screwed.
    P5280028.jpg
    Here's the new fans

    P5280032.jpg

    The fans are much, much quieter, as previously mentioned. For further airflow and sound enhancements, I also removed the grills:
    P5280034.jpg

    And here it is running with the heat sinks seen under fans:
    P5280038.jpg

    Final temperature readings with thermal gun show the back of the heat sink to be 4 degrees F above ambient. Before the upgrade it was about 18 degrees above. Yay!
    Other thoughts...
    1. Fans were too loud, and mounted with bolt and 2 nuts. I used the screws that came with the fans and it was much faster. Fans should have remove-able grills-- look at the airflow those things must block.
    2. A good heat sink will keep your system as close to ambient as possible. The original heat sink is little more than a base for a real heat management solution, because surface area is very important for heat transfer.
    3. Leave the film alone! But, I'm glad I saw the 80X2W, so questions can be asked.

    Hope you enjoyed the show, thanks for tuning in!

  4. #14
    420 TIME Stoner
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    I just bought a 240w Blackstar and a bit disturbed to find out it's running 80 2w LEDs WTF!!

  5. #15
    Stranger Stranger
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    Anything over 1watt for LED diodes is a waste: 100x1w > 50x2w

    While there is a small benefit of larger than 1watt led, the price is not worth it.

  6. #16
    Marijuana Toker Marijuana Toker
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    Quote Originally Posted by Po boy View Post
    Florida - high heat and humidity - help
    Does anyone have any way I can dry my autos that will be ready in a couple of weeks. Can't bring into the house during the drying period and am worrying about getting mold. I know the lower heat and humidity are best but I am stuck with few options. Any help highly (no pun intended) appreciated.
    Hey man, if you need your dried bud quick you can essentially drown your plants. Just put the pot in a bucket of water(for about 4days) and the tree won't be able to get oxygen and dry up the buds. This is with the lights off(on takes longer) and still air circulating... (Taken from riddleme, don't directly quote me)

    Good luck!

  7. #17
    Able To Roll A Joint Able to roll a joint meharmon's Avatar
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    Quote Originally Posted by Spoc View Post
    I just bought a 240w Blackstar and a bit disturbed to find out it's running 80 2w LEDs WTF!!
    WTF indeed! I assume they will simply say that its an older PCB, while still using 3W chips or some similar excuse, but I need to research a bit more to find out exactly what these are. Either way the panels produce well, so I hope you enjoy it! Thanks for checking out the thread!

  8. #18
    Able To Roll A Joint Able to roll a joint meharmon's Avatar
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    Quote Originally Posted by Millsie View Post
    Hey man, if you need your dried bud quick you can essentially drown your plants. Just put the pot in a bucket of water(for about 4days) and the tree won't be able to get oxygen and dry up the buds. This is with the lights off(on takes longer) and still air circulating... (Taken from riddleme, don't directly quote me)

    Good luck!
    Even if the post is totally unrelated to the topic, thanks for being helpful. I think you're confused with flushing though, because drowning the plants will make them soak up all that water, and the excess nutrients are supposed to get used up since they're starved of oxygen in the roots. What he needs is a dehumidifer, maybe in an enclosed tent? Not sure why they can't bring them into the house as that's generally more secure than outside anyhow. A piece of tin laying in the sun will dry them fast

  9. #19
    Marijuana Toker Marijuana Toker
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    Okay, I won't reply after this because I don't want to sidetrack this topic but heres the post here.
    The Truth About Flushing
    It's around halfway through the topic...

    Good luck

  10. #20
    Marijuana Toker Marijuana Toker Tripp10966's Avatar
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    Thats some crazy shit man I just ordered one so im not ready to void tbe warranty yet lol but good job I might need this later. +rep

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