CMH vs LED vs HPS

[Crooked8]

What LED's you using Crooked? That's impress buddage!

Agrobar 720s, they are serious af

 

[cfl...KING]

@Crooked8
I will be adding LEDs 4 hlg diablos to my 4 1k hps. Hope they keep up

 

[Crooked8]

@Crooked8
I will be adding LEDs 4 hlg diablos to my 4 1k hps. Hope they keep up

Just buy a ppfd meter if you dont already have one. When you see how much higher your ppfd is under led, other parameters need to be adjusted accordingly.

 

[Normannen]

Why is everyone here still bringing up the sun?

 

[Brother Nature]

View attachment 18901967

Man have I sunken many a stoned hours into the Dark Souls series.....

 

[CannaT]

Yeah, in space if you really wanted to. The question is viability though. Which can be weighed up purely as personal profit, and generally is. Or you can take the slightly wider view, and look at global security. If the whole planet was your personal farm, where would you grow your green.

Obviously if you don't believe in global warming, or anything else that seems restrictive, the conversation ends here.

Canary Islands for shure.

 

[master shake]

LED has given the best buds for me, growing off and on for 18 years. Using 2 VIPARspectra par600 I was around the 1g/w yield (actual watts), I think maybe more like 1.3g/w but can’t remember. Been a couple years since last grow. Never forget my beginning HPS days tho, good times!

 

[hillbil]

250 4000k Philips CMH back into flower tent with white and white/red Boards, cooler weather now.

 

[Hammerhead]

@Crooked8
I will be adding LEDs 4 hlg diablos to my 4 1k hps. Hope they keep up

You will need a large enough area for 6500 watts. I use 1 HLG diablo led, 1, hlg 320w led 1 Mars 680w led, 1 mars 250w led, and 1 1kw CMH 2900 watts in a 10x10.

 

[zachrockbadenof]

You will need a large enough area for 6500 watts. I use 1 HLG diablo led, 1, hlg 320w led 1 Mars 680w led, 1 mars 250w led, and 1 1kw CMH 2900 watts in a 10x10.

hammer... ain't that a lot of light??? - i have a mars fce8000, n dim to 70/75 as per what others have told me... am i dimming tooo much??? - i luv to add one of my old 315 cmh in the middle of the grow, but again worry about tooo much lite

 

[Normannen]

hammer... ain't that a lot of light??? - i have a mars fce8000, n dim to 70/75 as per what others have told me... am i dimming tooo much??? - i luv to add one of my old 315 cmh in the middle of the grow, but again worry about tooo much lite

Experimenting and observing the reaction of the plants is gonna give you way better advice than any of us codgers on this board

 

[Normannen]

as an ex plant researcher I would like to contribute with this: someone who can explain how I see it better than I could possibly do. It means you gotta mix all of your lights together

 

[RobertFripp]

hammer... ain't that a lot of light??? - i have a mars fce8000, n dim to 70/75 as per what others have told me... am i dimming tooo much??? - i luv to add one of my old 315 cmh in the middle of the grow, but again worry about tooo much lite

A friend of mine uses 4x 880w Mammoth Mint White Series in a 10 x 10. Thats 3520w. One light for each 5 x 5.

Mammoth has a very high GREEN spectrum. Mammoth White Series are 4800k. Also has the new Evo chips. 437nm, and are supposed to inhibit mold, and mildew.

Has a 437nm-730nm spectrum. UV Bars 100w also available. 2711umol.

 

[Normannen]

I've had really good results in flowering using a Samsung 200W 2000K outdoors caster that is very rich yellow, so I was thinking of implementing it side by side with the Mars Hydro I am currently using, hoping to see an improvement in yeld; and if not that at least quality.

 

[JKD]

 

[JKD]

^Haven’t used or seen, but looks interesting. From Growlights Australia.

 

[Normannen]

^Haven’t used or seen, but looks interesting. From Growlights Australia.

meaning their dailight? that red emission is phat as hell

 

[Rocket Soul]

^Haven’t used or seen, but looks interesting. From Growlights Australia.

Heres pics of their latest gen3 spectrum and efficiency nrs.
1A 3.19 umol/j
2A 3.01umol/j
3A 2.89 umol/j
4A 2.79 umol/j
5A 2.72 umol/j

They are legit made; custom 3die white diodes with narrowband phosphors, custom reds with same epis and parts as cree xlg, nichia uvs, world leading in efficiency. Theyve not saved a dime anywhere on this. They look pricey on their web but remember its aus $ and to deduct sales tax if your outside of Australia.

 

[Normannen]

Heres pics of their latest gen3 spectrum and efficiency nrs.
1A 3.19 umol/j
2A 3.01umol/j
3A 2.89 umol/j
4A 2.79 umol/j
5A 2.72 umol/j
View attachment 18905511

They are legit made; custom 3die white diodes with narrowband phosphors, custom reds with same epis and parts as cree xlg, nichia uvs, world leading in efficiency. Theyve not saved a dime anywhere on this. They look pricey on their web but remember its aus $ and to deduct sales tax if your outside of Australia.

fantastic!

 

[cfl...KING]

MH vs hps (joking). It's right where the two lights over lap