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Amazon Shop for: HPS

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OfflineBaron_Samedi
Urban Naturalist Industries
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Registered: 02/02/16
Posts: 269
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Last seen: 7 days, 23 hours
HID lighting question
    #808722 - 03/25/16 02:48 AM (1 year, 29 days ago)

So I know the general way for HID is MH for Veg and HPS for flower can anyone tell me why? I mean I have both that came with my 400w ballast but just curious I read a few things about hps making plants stretch out and things about MH and the extra blue light spectrum does nothing special for the plant but what if you just turned down your ballast with an hps bulb during flowering then bumped it back up for flower? any insight would be greatly appreciated my seedlings just popped and getting my tent all ready to go oh yeah and when exactly should I transplant from plug to soil? these seeds popped alot faster then I expected it's day 3 since sowed and they all popped and shed the shell today outdoor I would have put them in to pots today...


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OfflineGrit
Registered: 01/28/16
Posts: 146
Last seen: 2 months, 3 days
Re: HID lighting question [Re: Baron_Samedi]
    #808740 - 03/25/16 09:23 AM (1 year, 29 days ago)

This is how I was taught to look at it, mh is like the spring/early summer spectrum of the sun - good for growth and strong stems. Hps is like late summer/fall spectrum of the sun - good for flowering. I'm not making a claim that's any scientific fact, it's just what I was taught and it seems reasonable to me.

I never bump my ballast down in watts, only if having heat issues would be the only reason.

You can veg with hps, and I've read a lot of guys do, but in my own experience, plants vegged with mh are stronger, better and happier. Vegetative growth needs more of the blue spectrum provided from mh. Now this is just my opinion and no scientific facts to back me, so take it however you want.

Hopefully, if I'm wrong, one of the more seasoned growers will correct me and explain the spectrum differences better than I can.


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InvisibleNevar44
Stranger

Registered: 12/28/15
Posts: 533
Loc: west/east WA
Re: HID lighting question [Re: Grit]
    #808743 - 03/25/16 11:13 AM (1 year, 29 days ago)

Blue spectrum keeps plants from stretching

In a lab, plants will stretch if they are not getting adequate blue light. Go w the blue light man

Watch this trust me watch it ALL...



When the sun is higher in the sky, there is more blue light

When the sun is setting, and in fall when it's lower in the sky.. more orange and red light..

In that link, he states how over seas they're experimenting with Farr red light being given to the plants for 15-30 at th e end of each da. To put them to sleep faster. Which allows them to turn the lights on sooner... watch the video he mentions thay in first half hr


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Edited by Nevar44 (03/25/16 11:20 AM)


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OfflineBaron_Samedi
Urban Naturalist Industries
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Re: HID lighting question [Re: Nevar44]
    #808758 - 03/25/16 08:58 PM (1 year, 28 days ago)

I'll give it a look thanks man more just curious than anything I'm gonna
a have to replace the bulbs sometime probably sooner with these cheapo ones but yea I used the mh and put those ladies in the tent last night


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OfflineKaptKid
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Re: HID lighting question [Re: Baron_Samedi]
    #808798 - 03/26/16 04:15 PM (1 year, 28 days ago)

I've started using HPS for everything. Had no streaching problems in veg.
Know other long time growers here do same thing.
Hopefuly they will post.


Good luck to you.


--------------------
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InvisibleStonethM
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Registered: 10/06/08
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Re: HID lighting question [Re: KaptKid]
    #808799 - 03/26/16 05:13 PM (1 year, 28 days ago)

I'm still a fan of MH in veg, super blue hortilux in fact.
Flowering I use a combination of HPS/hortilux super hps/, and a couple older models bridgelux LEDs.


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OfflineBaron_Samedi
Urban Naturalist Industries
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Re: HID lighting question [Re: Stoneth]
    #808800 - 03/26/16 05:57 PM (1 year, 28 days ago)

thanks for the replies I think I'm gonna try a straight hps run when I get more comfortable or maybe a hps and led filler I love the idea of led but doubt the effectiveness on its own I got one to play with so I guess we will see


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OfflineKaptKid
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Re: HID lighting question [Re: Stoneth]
    #808926 - 03/28/16 05:31 PM (1 year, 26 days ago)

I see a larger leave size when I used MH.
Just never set up an air cooled hood for one.
Maybe to stoned or just lazy.
MH does have there place.


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Child of the 60's, Tripping ever sence.


Edited by KaptKid (03/28/16 05:33 PM)


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OfflineBaron_Samedi
Urban Naturalist Industries
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Registered: 02/02/16
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Last seen: 7 days, 23 hours
Re: HID lighting question [Re: KaptKid]
    #808927 - 03/28/16 05:45 PM (1 year, 26 days ago)

wow even this 400w MH throws off some heat it's at least 5 degrees hotter even with the cool tube


--------------------
WARNING: I am a compulsive LIAR dont believe a word I post!!! None of these ideas and photos are original I just post to try and validate myself and appear to be good at something other than being a waste of space...

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Amazon Shop for: HPS

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