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Thread: HPS Questions

  1. #21

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    Quote Originally Posted by MrCannab1sir View Post
    Nice, I'll plug it in and have a butchers. Does it need to be turned off to switch between 250-400-600w?
    You best of getting three bulbs mate.. 250w 400w and 600w i dont think you can use the same bulb to switch between them


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  3. #22

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    Quote Originally Posted by skunkybudmans View Post
    You best of getting three bulbs mate.. 250w 400w and 600w i dont think you can use the same bulb to switch between them


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    Ah ok mate, makes sense, nice one. They aren't that expensive at least

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  5. #23

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    Hi,
    I have a 600w HPS in a tent of 1.2 x 1.2m and do not have any cooling problems. I have a 150mm Black Orchid centri-flow extractor fan running very slowly, and I have a Lumatek parabolic reflector with a Sunmaster dual spectrum lamp. I set the digital ballast to 400W for veg with a clearance height above the canopy of around 300mm, and 600W with a height of 350-400mm for flower. My temperatures in the tent remain below 25C, in fact I have had to install heat mats to keep the temperatures above 20C.
    Hope this helps to answer some of your questions.

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  7. #24

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    There is no sound from my Lumatek digital ballast. It does get a bit hot though.

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  9. #25

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    Cheers man, I was hoping to get led and hps in but no way I'll do it in the tent I'm in, its 80x80, got a 100x100 but even in there I think I'd struggle

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  11. #26

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    I've got a dimmable, just use 1 bulb and dim down

    From behind the bushes


    "Patience is bitter, but its fruit is sweet."

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  13. #27

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    I've got 2 autos, 8wks old. For a while they were under 150w IS led and 250w dual spec hps, then took the hps out and for at least a few wks been under the LED alone. They're late in flower I'd say, I think 2-3 wks before chop. Got a second hps ballast today so wondering if I put a 250w dual spec back in with the LED now is there a high chance of giving myself a headache? Or do ya think it will just be a positive for the last few wks?

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  15. #28

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    Quote Originally Posted by MrCannab1sir View Post
    I've got 2 autos, 8wks old. For a while they were under 150w IS led and 250w dual spec hps, then took the hps out and for at least a few wks been under the LED alone. They're late in flower I'd say, I think 2-3 wks before chop. Got a second hps ballast today so wondering if I put a 250w dual spec back in with the LED now is there a high chance of giving myself a headache? Or do ya think it will just be a positive for the last few wks?
    Yield is proportional to ppfd, well DLI. Right now is when the plants would use as much DLI as they can.

    What you have quite rightly identified, in your headache, would be increasing the water, feed, temps now all in line with that new level light.

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  17. #29

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    Quote Originally Posted by gardro View Post
    Yield is proportional to ppfd, well DLI. Right now is when the plants would use as much DLI as they can.

    What you have quite rightly identified, in your headache, would be increasing the water, feed, temps now all in line with that new level light.
    Yeh thats it mate, it's pretty easy going, water/feed every 2/3 days, bit of defol to get the light in. I ask myself, Is it gonna be worth adding an extra light and hoping it balances out without too much tinkering for the extra yield I'm not sure I'll get lol? I am fond of the saying if it aint broke don't fix it...I also really like weed

    If I can keep the temp/humidity stable and I'm willing to be more flexible with the water/feed, then it would be worth adding the light? I understand it's my choice, plenty of time to mess about atm. I also wasn't sure if it would cause too much stress at a crucial stage

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  19. #30

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    Quote Originally Posted by MrCannab1sir View Post
    Nearly bloody ordered it lol, I'm too impulsive that's my problem. Just ordered a dimmable digital lummi black 600w ballast with dual bulb and euro reflector, 79 squid. See how we get on, need it to come tomorrow as I'll struggle accepting them for next few wks. Don't like leaving grow gear with the neighbours, box came ripped yesterday ffs
    Lol back in Scotland the couriers would leave my bubble buckets,coco,nutrients etc at my neighbors house,luckily they were thicko's and didn't click on that I was growing.

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