What led would be comparable to 1000w hps for 4x4 foot coverage

Well to make things simple for you. I just added an led first time user of led next to my 1000w hid on a 4x8 flood tray. I went with the spiderfarmer se7000 6 bar light and am very happy . 468 with the site 15% off and a coupon 15% off found on Google search no tax. The se series uses the Samsung evos

I think it's 730w but I turn it down. To make it easy for you just get the spiderfarmer 8 bar version it pulls 1000w at the wall, and you wont be missing anything. And can always dim it down to 600w or 700w. Its really stronger than I thought it would be.

I have been using a 1000w mg for veg and switching to 1000w hps for flower ever since I started growing again in 1998 when I got out of the Military and left the DOS...I am going to make my first run with a 720w LED starting soon...we shall see how it goes...I am preparing with the cal mag supplement for the LED...Hopefully comes off without a hitch!

You should be good. 720 Tomahawk from HLG is what is in my 5 x 5. Works well.

ApacheTech has a nice bar light, now. They also have the same old design lights they were selling 10 years ago, too! LOL!...but nice lights all the same.

tstick said:

ApacheTech has a nice bar light, now. They also have the same old design lights they were selling 10 years ago, too! LOL!...but nice lights all the same.

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Its interesting to see that they still use 630-640nm diodes for their reds.
T, youre an oldtimer do you have any opinion on 640 vrs 660 for red supplement?

jimihendrix1 said:

I myself would go for the
680w Mammoth Mint White. Though, it looks like they wont be available until late summer.

6 Bar, 680w LED Grow Light: Mammoth Lighting Mint White Series with Emerald Green Canna Spectrum

Please note - we are moving to the NEW 2026 Nova Sun Series and decided to not make this series anymore. See the link for the Nova Series. If you need an immediate light - 8 bar Mint White Series are available. The NEW 2025 Mint White Series with Emerald Green + Red Terp Boost! 2025 spectrum...

mammothlighting.com

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I tried one of their current evo veg lights and the plants are loving it over the full cycle Evo light that was in there.

They are selling the 2026 model already. The sun and cmh lights have the closest spectrum to each other, it looks like the new '26 nova series mimics the spectral curve(atleast within the PAR range) to cmh's pretty well.

We got a few highgrove evos with a similar spectrum to the mammoth 25 series and the highgrove are putting out the best flower I've ever grown. But if I had to start over today and shop for something new I think I'd try one of the mammoth nova's. It looks like they are taking a step in the right direction to me by filling in the troughs a bit more.

BongChoi said:

I tried one of their current evo veg lights and the plants are loving it over the full cycle Evo light that was in there.

They are selling the 2026 model already. The sun and cmh lights have the closest spectrum to each other, it looks like the new '26 nova series mimics the spectral curve(atleast within the PAR range) to cmh's pretty well.

We got a few highgrove evos with a similar spectrum to the mammoth 25 series and the highgrove are putting out the best flower I've ever grown. But if I had to start over today and shop for something new I think I'd try one of the mammoth nova's. It looks like they are taking a step in the right direction to me by filling in the troughs a bit more.

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The Sun, is 5000k-5800k- depending on time of day, or cloud cover
CMH is around 4100k
Hortilux Blue is 5500k

Digilux has a DE Halide 1000w that puts out almost 2000umol-5500k


Hortilux just came out with a 1400w x 5500umol LED. No idea of the $$$$$. Im sure it aint cheap.

I am still with black dog led

Trap Star said:

I am still with black dog led

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Black dogs latest is not looking bad with big efficiency bump to 2.2 ppf per watt. However, it still seems low to me for a premium light: main part of its spectrum is cold whites (around 3.1 or so) and the reds should have +4 ppf/w if using reasonably up to date osram reds; they should be able to do this closer to 3 for the price they charge.

BongChoi said:

I tried one of their current evo veg lights and the plants are loving it over the full cycle Evo light that was in there.

They are selling the 2026 model already. The sun and cmh lights have the closest spectrum to each other, it looks like the new '26 nova series mimics the spectral curve(atleast within the PAR range) to cmh's pretty well.

We got a few highgrove evos with a similar spectrum to the mammoth 25 series and the highgrove are putting out the best flower I've ever grown. But if I had to start over today and shop for something new I think I'd try one of the mammoth nova's. It looks like they are taking a step in the right direction to me by filling in the troughs a bit more.

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props for adding Teal and terp boost for really good coverage of 450-660. Theres just one thing i dont get: if you base your light spectrum on the science they present why are they going for a sunlike spectrum. The paper behind the terpboost/dual red peak show very differently: the winner was not sunlike in anyway at all: RBG was ~74/6/20: basicly 50% warm white and 50% 640/660. The higher green/blue spectrums came up as lacking. On top of that theres an efficiency argument: a sunlike spectrum has much lower efficiency than a heavy red sup spectrum: the yield gains would be even bigger if it was measured per watt instead of normalised light intensity.

Green, as far as ive seen and understood: yes it will help penetration and buds below somewhat, and helps with yield and density. It will also firm up the buds. But its not because of a stronger budding response, its just more fiber more density. It will also turn down your terp profile somewhat. The green response in horticulture is a intracannopy/infrastructure response: it diverts energy towards branching and fiber instead of buds.

Highgrove evos have added uv, it will change your terp profile considerably. Anyone who hasnt tried should go ahead and try it but if you have a typicall high blue spectrum (like pretty much any led on the market) you may wanna add some red in order to compensate the uv and avoid yield loss.