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Shop: North Spore Bulk Substrate, North Spore Mushroom Grow Kits & Cultivation Supplies   Original Sensible Seeds Bulk Cannabis Seeds

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OfflineThe Shape

Registered: 10/27/07
Posts: 328
Loc: Haddonfield, IL Flag
Last seen: 9 years, 9 months
HPS 70w
    #7747715 - 12/12/07 12:05 AM (16 years, 1 month ago)

well i have a 70w hps lying around from my herb grow and i dont want to toss it

i was wondering if you knew if i should use it on my bulk sub which is now 50% col.

should i put the light over the sub once its 100% colonised to induce pinning or should i even use it?


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InvisibleRidinSpinners
Strangerthanyou

Registered: 08/25/03
Posts: 41
Re: HPS 70w [Re: The Shape]
    #7747734 - 12/12/07 12:12 AM (16 years, 1 month ago)

a 70w HPS is way too much light for mushies. and pretty much way too little light for herb.

maybe use it for a security lamp?


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Edited by RidinSpinners (12/12/07 12:13 AM)


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OfflineBikerfool
Your Local Edgelord
Male


Registered: 11/21/05
Posts: 1,577
Last seen: 5 months, 13 days
Re: HPS 70w [Re: The Shape]
    #7747737 - 12/12/07 12:13 AM (16 years, 1 month ago)

I wouldn't bother with the light. It's not necessary, pretty much any kind of light seems to work, a grow light's just going to use a lot of electricity. Once the substrate is fully colonized case it or not, and expose the mycelium to fresh air and light to initiate pinning.


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OfflineNibin
Getting there
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Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 8 months
Trusted Cultivator
Re: HPS 70w [Re: Bikerfool]
    #7748110 - 12/12/07 06:08 AM (16 years, 1 month ago)

Also, HPS lamps emit light of the wrong temperature (by this I mean colour not the heat of the lamp). It is in the reddish spectrum, which is great when you want to induce flowering, but for pinning you want a light in the 6000k range, more similar to the light produced by a MH lamp. Or even better, and less electricity consuming, a standard household CFL or Fluorescent tube of the daylight (6000k) kind.


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OfflineRogerRabbitM
Bans for Pleasure
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Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
Trusted Cultivator
OG Cultivator
Re: HPS 70w [Re: Nibin]
    #7748276 - 12/12/07 07:57 AM (16 years, 1 month ago)

Correct, HPS is the wrong color temperature, emitting a red light. Look for fluorescent lamps in the 5,000 to 7,500 Kelvin range.
RR


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