400w hps light for both stage of grow?

Kybudz said:

simon looks good from here +rep simon..

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Thank you. That particular plant was grown from seed to show max yield per square foot. I didn't use it for the tutorial, because, well, I felt it was a genetic fluke. This plant was used, instead:



FWIW, here's a pruning tutorial, using my Chronic clone, where growth under HPS' is illustrated:

https://www.icmag.com/ic/showthread.php?t=187887

In all honesty, I feel odd even discussing this, as the MH/HPS "issue" is 20 years ago. It's only the hobbyists who argue about it, and it's always the guy who knows the least that's the loudest of all.

Simon

For me, all the buds look good, because i never grow weed.I want to start right from the beginning, and then i'll gain some experience and tell you guys what type of light is better. Thanks for helping!

These are all 400w all the way! Good luck bro!

looks pretty short and stocky to me... The few vegging there are 6 weeks old on a 16/8 light cycle

Nice plants!

Depending on how big your plants are gonna be a 400w may not give you a big enough footprint. If you are growing anything under 4" tall you'll be just fine.

Stinkbait said:

These are all 400w all the way! Good luck bro!

looks pretty short and stocky to me... The few vegging there are 6 weeks old on a 16/8 light cycle

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Looking FROSTY there stinkbait. Nice!

phillipchristian said:

Depending on how big your plants are gonna be a 400w may not give you a big enough footprint. If you are growing anything under 4" tall you'll be just fine.

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For my first time, i'll grow just 2 or 3 plants.

But i don't want to use any air equipment, some fans are not good enough?

Stinkbait said:

...

looks pretty short and stocky to me...

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Heh, speaking of short...



Simon

physicx said:

For my first time, i'll grow just 2 or 3 plants.

But i don't want to use any air equipment, some fans are not good enough?

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I posted a link at the top of the page to a tutorial that shows how to cultivate high-yielding plants with no waste. The process is particularly effective with smaller lights like a 400.

What do you mean by air equipment? Air-cooled hoods?

Simon

SimonD said:

I posted a link at the top of the page to a tutorial that shows how to cultivate high-yielding plants with no waste. The process is particularly effective with smaller lights like a 400.

What do you mean by air equipment? Air-cooled hoods?

Simon

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Yes..want to place them in a corner of a room, not in a closet or box if possible.
Place some normal fans in the room. << http://remodelista.com/img/sub/freudtablefan.jpg >>

They will grow?

phillipchristian said:

Depending on how big your plants are gonna be a 400w may not give you a big enough footprint. If you are growing anything under 4" tall you'll be just fine.

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Fo sho! I squeezed six under it but that's maxed out with a 4 week veg. I imagine I can do better with a screen. Right now I just have the two vegging in those pics. I just put em in 10 gallon smart pots lol

oh yea, thanks for all the nice comments!

physicx said:

For my first time, i'll grow just 2 or 3 plants.

But i don't want to use any air equipment, some fans are not good enough?

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If you live in a cool area year round you may be okay with just fans. I live in Az so I use an inline fan along with a 12 inch fan in my room. The inline fan allows me to place my light close to my plants without burning them.

physicx said:

Yes..want to place them in a corner of a room, not in a closet or box if possible.
Place some normal fans in the room. << http://remodelista.com/img/sub/freudtablefan.jpg >>

They will grow?

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Sure, they'll grow. If you decide that you want to grow more efficiently with better results, it'll be time to upgrade.

I'll suggest two thing to you:

1. If you want to learn, learn from the best.
2. Make things as simple as possible.

Just as a point of interest, here's a growbox I built when I started out indoors:







I actually had a two of these running side by side, each with a 600HPS, a Vortex600, and a Can66. Each box consistently pulled ~12-14oz dry/cured from less than 6ft2 of floorspace. You could easily put something like this in a room and reap the benefits of a dedicated garden. Something to consider for the future.


Simon

Stinkbait said:

If you live in a cool area year round you may be okay with just fans. I live in Az so I use an inline fan along with a 12 inch fan in my room. The inline fan allows me to place my light close to my plants without burning them.

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I must direct the fan's air into bulbs?
3 or 4 fans will be enough for 3 plants?

Chinesesmoker said:

400watt hps during vegging will make you plant all leggy and not thick

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Bullshit...

physicx said:

I must direct the fan's air into bulbs?
3 or 4 fans will be enough for 3 plants?

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I'd try at least 4 fans and point one right at the bulb and up and out of the room but I've never tried that. You will need good air circulation (fresh air coming in and the hot air going out) if your just using fans.

Hope that helps

I rigged two pc fans up ,one pushin,one pullin,4in,flexible dryer vent fans fit perfect in side .stuffed that in 6" air tube sealed around with hvac metal tape,runs cool as other side pillow.

Stinkbait said:

I'd try at least 4 fans and point one right at the bulb and up and out of the room but I've never tried that. You will need good air circulation (fresh air coming in and the hot air going out) if your just using fans.

Hope that helps

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Thanks for answer! I just simply want at the final of grow..have some buds!

Kybudz said:

I rigged two pc fans up ,one pushin,one pullin,4in,flexible dryer vent fans fit perfect in side .stuffed that in 6" air tube sealed around with hvac metal tape,runs cool as other side pillow.

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Where do you grow the plants? I want to put them in a corner of room, not in a box or closet