400w "mh"~veg "hps"~flower lighting height

[420atsk]

whats a cmh ???

[Dutch Pimp]

whats a cmh ???

Ceramic Metal Halide: it's a conversion bulb; used on magnetic HPS ballasts. Available in 250 & 400 watt sizes....only.

works great in closets...

[khyberkitsune]

"Mh doesn't give off the proper spectrum of light that the plant needs in flower."

That's a huge misconception. In fact, MH puts out MORE red and blue which are the critical components for flowering. HPS puts out more green. HPS was designed as human lighting, not plant lighting. This is why you're seeing HPS bulbs with 'EXTRA BLUE' - they're lacking what the MH isn't.

"When flowering the plants need more of a red spectrum"

Proven totally false in my blue-dominant flowering experiment. Please see the link in my sig. As an added note, it appears that any higher of a photon flux density per wavelength might be a waste. I still have to sort that out but my blue-dominant results still stand out. I've also successfully flowered multiple basil and cacti types under blue-dominant lights (most recent being Euphorbia obesa.)

"That is the way all the pro growers do it "

Funny you mention that, as every commercial and truly professional food production place I've ever come across (that's to say, in my travels around the world, Holland, Morocco, UK, Australia,) will tell you HPS is a piece of garbage. Those are pro growers. They've got the degrees, they've got the testing equipment, they have the decades of experience keeping people fed.

People choose HPS because it's cheaper than a CMH or MH bulb.

MH is the actual professional standard. And that's going to be that way for quite some time, until other lighting solutions finally start pushing the PPFD of an HID.

Hey Dutch - I just finished making my CMH killer. Maybe I can get you to test it out sometime.

[greg1317]

"Mh doesn't give off the proper spectrum of light that the plant needs in flower."

That's a huge misconception. In fact, MH puts out MORE red and blue which are the critical components for flowering. HPS puts out more green. HPS was designed as human lighting, not plant lighting. This is why you're seeing HPS bulbs with 'EXTRA BLUE' - they're lacking what the MH isn't.

"When flowering the plants need more of a red spectrum"

Proven totally false in my blue-dominant flowering experiment. Please see the link in my sig. As an added note, it appears that any higher of a photon flux density per wavelength might be a waste. I still have to sort that out but my blue-dominant results still stand out. I've also successfully flowered multiple basil and cacti types under blue-dominant lights (most recent being Euphorbia obesa.)

"That is the way all the pro growers do it "

Funny you mention that, as every commercial and truly professional food production place I've ever come across (that's to say, in my travels around the world, Holland, Morocco, UK, Australia,) will tell you HPS is a piece of garbage. Those are pro growers. They've got the degrees, they've got the testing equipment, they have the decades of experience keeping people fed.

People choose HPS because it's cheaper than a CMH or MH bulb.

MH is the actual professional standard. And that's going to be that way for quite some time, until other lighting solutions finally start pushing the PPFD of an HID.

Hey Dutch - I just finished making my CMH killer. Maybe I can get you to test it out sometime.

lol yea cause you yielded so much from your pathetic little plants. Those things are tiny how can you even act like thats some sort of successful crop. How much did you get like a half o per plant. LOL

[420atsk]

so its best to stick with what the hps.
cuz thats what my plan's where but if my MH will yield more then i could stick with it the whole way. Ive never heard of using MH the whole time my uncle says why not if it will flower but i know the diff spectrum is better for the flowering stage's compared to the vegging SO..


Again what is the best way people flower for large yields?

Is having the light closer better then a lil further just enough to reach all cola's?

And what is the best way to trim fan leafs for more lighting?

And when/what can you trim after you switch to 12/12?

and if you can post a pic or video of your grow

thanks it will help alot of people:rastasmoke:

[khyberkitsune]

lol yea cause you yielded so much from your pathetic little plants. Those things are tiny how can you even act like thats some sort of successful crop. How much did you get like a half o per plant. LOL

Why, yes, half o per plant. With each light using 12w LED, that comes out to over one gram per watt.

What are YOU yielding right now? Bet it wasn't a gram per watt!

Oh, and sending me an IM saying this exact same thing and then signing off is a sign of cowardice - just to let you know.

[greg1317]

I almost made that mark. Last harvest i got 13 1/2 oz with a 400 watt HPS light. I was growing in a 33inx33inx72in space and had 15 plants. It was a SOG grow.

[khyberkitsune]

You ran off again, coward.

Can't wait thirty seconds for someone to take a pic and upload it?

I'll just post the contract here since you can't stay online long enough to face the fact you got owned with proof, son.

Names redacted to protect those not involved - my name's firmly there, though, for you to pay with all you want.

MULTIPLE COUNTRIES use my expertise, sir.

Don't be mad because you're not my age with my experience. Take it as an opportunity to learn from me, instead.

[420atsk]

it doesnt matter how you grow it its all the same shit in the long run everyone wants a large yield so what everyone is looking for 1/2oz nug's not a bunch off bullshit shake now SCROG'ing do you have to train the plant from a baby or can i take a 24in plant and bend it around and should you top a plant before going SCROG and whats the best screen to use that a 400w wont burn/melt at 12in away. :stoned:

[greg1317]

lol you sent me a picture of a scrog grow that wasnt even yours. Your opinion is worthless to me and i will ignore anything further you have to say. Now i know your name and address. If Alex McQuown is actually your name.