hlg 600s in tent??

The hlg600 says needs 3.75ft(1140mm) from roof to canopy. In a tent 1800mm thats leaving me only 200mm for plant space and my pot are 400mm. Thats gota be wrong??

I understand rooms would do it easily. But im told 2x600r in my 4x8(1200x2400mm) tent at 6ft(1800mm) will be ok?

I run scrog but damn thats a tight gap to fill ??

It only depends upon how you mount it. You can mount it with many different cable systems. You should be able to run it a foot from your tent top especially with a fan running over it or if the driver is outside the tent. That 3.75ft is a mistake one way or another.

Now in veg, you might start at 3 ft away from the canopy, and mount it say 9 inches from the top, and then you have 3.75ft from top to canopy to START. But you can dim it and put it wherever you want. It's not likely you will need to run it full power at all during veg. Or potentially even in flower!

2cent said:

The hlg600 says needs 3.75ft(1140mm) from roof to canopy. In a tent 1800mm thats leaving me only 200mm for plant space and my pot are 400mm. Thats gota be wrong??

I understand rooms would do it easily. But im told 2x600r in my 4x8(1200x2400mm) tent at 6ft(1800mm) will be ok?

I run scrog but damn thats a tight gap to fill ??

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HLG site says 28-36" above canopy so 3.75 feet would leave 8" above the board. Seems reasonable considering it's 600w in a rather small footprint of 26" x 21.5". If I wanted 600w of HLG or boards, I wouldn't buy the 600, I'd use multiple smaller boards spread out or maybe a Scorpion.

If I bought a 4x8, it would be taller than 6 feet!

1212ham said:

HLG site says 28-36" above canopy so 3.75 feet would leave 8" above the board. Seems reasonable considering it's 600w in a rather small footprint of 26" x 21.5". If I wanted 600w of HLG or boards, I wouldn't buy the 600, I'd use multiple smaller boards spread out or maybe a Scorpion.

If I bought a 4x8, it would be taller than 6 feet!

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This!

Op , this is what has been adviced in the previous 2 threads you posted on this there is no way this will change by re-asking. As far as I can see you'd need a different approach: either a taller tent, maybe your best solution, or buying a different light; main options being a bar light with low hanging height (no real hlg options here, sorry) or 2 scorpions (the old r-spec would work at 12" if you can't find cash for Diablo scorpion) but mainly: buy 4x 350r for the same price as 2x 650r. Another thing that would work is is 4x old 320kits, again cheaper than 2 x 650r. No matter what you go for you'd need to dim the lights somewhat.
The only way to get a 650r to work in your tent is to turn it over on its side and do a 8ft tall 4x6. And even so you would be better off with a scorpion.
I'm sorry if I sound shitty for getting frustrated or it's annoying to be told this by me another time, I'm only trying to make sure you don't waste your money on lights that won't work for your situation. And it's not just me, 1212 knows his stuff aswell. I'll just leave this in your hands now, cause everything that can be said about this has been said already. Best of luck and remember we are on your side.

Rocket Soul said:

This!

Op , this is what has been adviced in the previous 2 threads you posted on this there is no way this will change by re-asking. As far as I can see you'd need a different approach: either a taller tent, maybe your best solution, or buying a different light; main options being a bar light with low hanging height (no real hlg options here, sorry) or 2 scorpions (the old r-spec would work at 12" if you can't find cash for Diablo scorpion) but mainly: buy 4x 350r for the same price as 2x 650r. Another thing that would work is is 4x old 320kits, again cheaper than 2 x 650r. No matter what you go for you'd need to dim the lights somewhat.
The only way to get a 650r to work in your tent is to turn it over on its side and do a 8ft tall 4x6. And even so you would be better off with a scorpion.
I'm sorry if I sound shitty for getting frustrated or it's annoying to be told this by me another time, I'm only trying to make sure you don't waste your money on lights that won't work for your situation. And it's not just me, 1212 knows his stuff aswell. I'll just leave this in your hands now, cause everything that can be said about this has been said already. Best of luck and remember we are on your side.

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Sorry bud just everytime i go to order somone tells me sumin els and when i go to enquire i get so mixed replys im cofused.

Theres guys on youtube running the 600s in the tent 4x4.Hlg told me im fine aslong as i dim to 500w then i can drop the light.

Origionaly ibwas gona get 3 350r.
But was then told the 600 dimmed would be just as good.
This dudes 550 Id there all rokkin it why cant i ?
My last thred roket had a pol and it scored equally with mixed replys lol.




I dont want thw 650r it was the 600s with 1 over each 4x4 space like thw dudes on youtube yankin 3lb a light in a 4x4 lol damn thats a mean grow.

Hlg said potentially you have got about 20” (50cm) to play with, so long as you actively cool the back of the lights on the driver, so if you want to run it at full-power then all good, but equally you can place the lights closer and dim to get same PPF, the only difference is spread will be reduced, however, HLG 600s are good for 5 x 5 tents so, running two in a 4 x 8 at 16” above the canopy dimmed to around 500W will be all good.

while it may work out it doesnt seem to be optimal.
the guy in your video itself is saying he would like to have more hanging height as he have 1500ppfd in the middle and 800 in the corners and he hung his light as high he could allready, not even using a carbon filter.

cobshopgrow said:

while it may work out it doesnt seem to be optimal.
the guy in your video itself is saying he would like to have more hanging height as he have 1500ppfd in the middle and 800 in the corners and he hung his light as high he could allready, not even using a carbon filter.

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Gona be moving and hopefuly tentless in 4 month.
Im running co2 at 2000 naturaly aswell so should even out my max ppf.


If the 350r is a 600w replacement. .and i dim the 600r to 350watts it should be the same led? But with optiion to turn up if i can so an Epxensive 350r yeah but dimmed to 50%should still outpreform my 600whps in a colltube yeah

Also if i am running 600w hps in 4x4 alredy and the hlg 600r has i think it 12%less btu or somthing.
Its 2x 600hps 4098
And 2 600r 4048

So basicly is the same heat as i have ifnot less..

So what is the limitation that some seem to say stops it being doable...@rocket soul hope you can chime back in bud @Rocket Soul

If I were you I would go with for Mars Hydro SP 3000 those things are no joke hit up Coco for cannabis…… two of those in a 4 x 4 area not one square inch of that tent will be under 700 PPFD neither will it be over 1000 that’s at 21.5 inches above canopy…..4 of those Will run you under $1200 and you’ll be pushing 1200w…..I’ve had amazing luck with their lights, I have yet to pull less than 1.5 g per wat out of any of the lights with most harvest hovering around 1.7-1.9 gpw… they also use the same exact LED diode‘s which is the LM301B that the hlg uses….. I was running a TSL 2000 I just picked up the SP 3000 for my 4 x 8 I have an optic led slim 650 S on one side the other side will be Mars sp-3000….. I dropped almost 1400 on that slim 650 S now that I have the SP 3000 and I see the amazing build quality and how gigantic that fucking meanwhile driver is on top I could literally fill up a 4 x 8 tent and a 2 x 4 tent with 5 SP 3000’s at the price it would cost me to just light up a 4 x 4 they’re amazing…..it’s all these big time like companies that are using the lm301b, lm305b (red) Samsung diodes and 660nm osram diodes competing with one another (optic LED’s slim s series is the only lights on the market right now useing Samsung’s new 3.75 Micromole efficiency diode‘s aka the v2 chips) but at the end of the day they’re all using the same fucking diode‘s and the same fucking drivers so what separates them from other companies, is how efficient that light is going to be at evenly spreading light to the canopy…. that SP 3000 spreads light more evenly. Than any HLG ever will…… The fact that you got to hang them damn near 4 feet is proof of that…… another thing that separates them is build quality and how efficient they are at managing the heat that’s where the SP 3000 shines……. build quality on the SP series is fucking ridiculous it’s hands-down one of the most brick shit house lights I’ve ever had. Second only to the optic one XL. Which is basically 10 pounds of aluminum with a little piece of glass on it ……. Don’t take my word for it go to Coco for cannabis or look up Shane from MI grow on YouTube …..he tested that light as well and he said flat out me and Mars Hydro have had bad run ins in the past because of build quality was shit they’ve stepped up their game considerably I’m surprise they even sent me this light to test after some of the things I said about their products…..this sp series light is one of if not the best to buy for coverage of 2x4 increments that their is on the market right now…….. those hlg lights are overpriced and the Diodes are pushed way too hard which drastically shortens their lifespan and as far as even coverage goes if anyone’s got anything to say about this post all you Gotta do is take and apogee quantum meter and test your little HLG and prove to me that it spreads light more evenly the SP 3000……..

Mars admitted they don't use top bin 301b. HlG used only top bin 301b and many or all their lights now use 301h which is sold in top bin only. And HLG didn't get caught using photoshopped pictures.

1212ham said:

Mars admitted they don't use top bin 301b. HlG used only top bin 301b and many or all their lights now use 301h which is sold in top bin only. And HLG didn't get caught using photoshopped pictures.

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HLG has a deal with Samsung too. They get all the first pickins.

Am chekin em out. Vids too but surely hlg is bettwr
Also whys the hlg called the sf killer on advert too lol they must be better ???

2cent said:

Also if i am running 600w hps in 4x4 alredy and the hlg 600r has i think it 12%less btu or somthing.
Its 2x 600hps 4098
And 2 600r 4048

So basicly is the same heat as i have ifnot less..

So what is the limitation that some seem to say stops it being doable...@rocket soul hope you can chime back in bud @Rocket Soul

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There is little I can add that I haven't said. You need spread most of all, either thru larger strip fixture or several lights per 4x4 section.
I'm a big fan of hlg, service and innovation and being legacy to this forum. But I do not like the hlg550/600/650r design. Not for tents not for an medium sized open space. Too much light concentration in the middle.

In open space I would like a light hanging fine at 8-12" so that you don't waste light on the walls. And this with 800-1000ppfd. Fotop boards all the way for me, unless you want to play with spectrum tweakings cause with a board big like that it gets difficult to get even spread on added mono spectrums. Search for the Fotop board on the forum if you like, theres threads.

Buddernuggs has a point above though; 2x mars sp3000 fit the bill for form factor and would give you even spread. But their price is not much lower than the hlg320 kit (bout 60 per ki)t: if you want something with a similar price to 2 hlg600 but better suited to your purpose then 4xhlg320 kits is a good fit. Ask both companies what would be the aftersales procedure if anything fails; if you feel that hlg quality and after sales is worth the extra 100 per 4x4, which I believe most people would agree on, then go a head.


But mainly and this was going to be my only answer but sometimes I just cannot stop myself from extending: Why are you buying a light for your tent (and possible open space) now and not waiting 4 months till you have your open space??? it seems like hlg is cooking up the next thing rn and this might change things in 4 months.

Enough ranted this is all I can say about this.

PadawanWarrior said:

HLG has a deal with Samsung too. They get all the first pickins.

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I’ve heard that from a few people but I don’t know how true that is because optic led is the only one running the new Samsung v2 chips….. maybe that’s what hlg has in the works right now

I just can’t get over how small those boards are for the area they clean to cover they put all their innovation in a lightbar system I honestly would probably switch over to straight hlg, as stated above they’re just too damn hot in the center and they just don’t spread evenly

Buddernugs said:

I’ve heard that from a few people but I don’t know how true that is because optic led is the only one running the new Samsung v2 chips….. maybe that’s what hlg has in the works right now

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V2 of what chip? There's an lm301b,h and One, later 2 for horticulture but all really the same chip. The One is not in the HLG boards but it's in other boards f ex Led-tech.de

The V2 of Samsungs reds seems to be not too uncommon.

The numbers you see on that report is a serious step up from previously and I cannot see how they'd get there only on new reds since the reds is only a small part of the string.
No matter what new hlg will probably mean price drops in older boards and fixtures.

Buddernugs said:

I just can’t get over how small those boards are for the area they clean to cover they put all their innovation in a lightbar system I honestly would probably switch over to straight hlg, as stated above they’re just too damn hot in the center and they just don’t spread evenly

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I think it has something to do with being able to shipp the lights easily.

I agree the only thing I’ve noticed different is that the V2 chips have a solid gold backing (electroplated)… Gold is the best conductor so maybe that’s how they got that boost of numbers I’m not too sure but I’ll tell you what though, they fucking hurt to look at from across the room and there’s only 64 of them on there and it’s only getting 100watts….. I really want to like hlg I really do, for honesty say if I had giant vaulted ceiling‘s I’m sure I’ll be running them right now lol…… as far as versatility I really can’t see any light on the market right now beating the optics slim 650 S, You can control white red and blue spectrum separately and it has UVA only chips along with infrared‘s that are on their own separate dimmer that’s wired into the main dimmer so they don’t get over driven…. 100% blue 0%red and 25% white in veg is ridiculous I’m filling up a 5 x 5 canopy with one plant sitting on 8weeks veg From seed, and if you’re working with a super stretcher max out that blue and it’ll keep them from stretching so much

Them 320 kits are 470 over here..
The 350r is 425

Wasnt i told the 350r 3 max was best but the 320 takes 4? .

I gwt it now lookin at a 600r vid was all middle focused.

The 350r i can get 1275 for 3. Arnt they the same as the 320kits but more power? For less?

I see somuch mixed about mars...and it was shite when i used their plurple leds lol.

You need to look at strip lights or soft driven big boards with height restrictions

Rocket Soul said:

V2 of what chip? There's an lm301b,h and One, later 2 for horticulture but all really the same chip. The One is not in the HLG boards but it's in other boards f ex Led-tech.de

The V2 of Samsungs reds seems to be not too uncommon.

The numbers you see on that report is a serious step up from previously and I cannot see how they'd get there only on new reds since the reds is only a small part of the string.
No matter what new hlg will probably mean price drops in older boards and fixtures.


I think it has something to do with being able to shipp the lights easily.

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they could be using the 301b evo?, they have a slight bump in efficency @235lm/w and a slight change in the phosphor that shifts the spd further into the red wavelenghts... they do mention an improvement in spectrum?...