What would you pick led or hps?

igna said:

The choice of your light does not correspond to you, it corresponds to the temperature where you want to place your crop.

If it's a cold place, HPS DEFINITELY.
If instead you grow in a hot place LED.

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this right here, the heat you have to add in a cold space would cancel out any savings from using led, not to mention the learning curve when switching to led can be a real curve ball leaving you completely stumped, LOTS OF CALMAG, if your space is under 80 degrees with led your plants will give you a lot of trouble

One of the better spectrums I speak of, is the Mammoth Emerald Green/Mint White LED. 2537umol-880w.

Its got a 4800k-5000k rating. 2537umol-2.95 Efficiency. 3456 Diodes.

And still.

The Hortilux Blue goes from 280nm-2000nm+. I myself also add in 2 Solacure UVA/B Flower Power bulbs, in each 4 x 4 area, and 1000w HID., or equivalent. Those are most powerful from 280nm-300nm. But the UVA, is the same as the sun. In uvb, they are 4+ times more powerful which allows to run less lights, and less time for them to be under the UVA/B.

What's your opinion on this bulb @jimihendrix1
I've just started using it in a dimlux fixture alongside another with the new dxo bulbs.
Does it stack up against the hortilux blue

pan2707 said:

HORTURION® MH DE Series - BLV Licht

Metal halide lamps (MH) emit a high amount of violet and blue light, which suppresses stem elongation, increases beneficial compounds and promotes vegetative growth. It is, therefore, well-suited for encouraging compact growth in decorative plants, enhancing leaf pigments in coloured vegetables...

www.blv-licht.com

What's your opinion on this bulb @jimihendrix1
I've just started using it in a dimlux fixture alongside another with the new dxo bulbs.
Does it stack up against the hortilux blue

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I want to try this bulb as well

Looks like the Kelvin rating is 4200k. Same as some CMH. 3100k-4200k.

Hortilux Blue has a Kelvin rating of 5500k, so they are vastly different, but, the halide you show, may still be a good bulb, but it doesnt have the same spectrum, as the Hortilux Blue.
New MSS bulb coming out, has a K rating of 6000k. Sun is 5800k

jimihendrix1 said:

Looks like the Kelvin rating is 4200k. Same as some CMH. 3100k-4200k.

Hortilux Blue has a Kelvin rating of 5500k, so they are vastly different, but, the halide you show, may still be a good bulb, but it doesnt have the same spectrum, as the Hortilux Blue.
New MSS bulb coming out, has a K rating of 6000k. Sun is 5800k

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Thanks for that @jimihendrix1
I've been looking at the MMS bulbs but don't think they'll work on the dimlux ballasts. The 600w ballast i have at the moment I'm using the dxo 400v bulb, the ballast says 240v on it, have you any idea if it will run the MMS

jimihendrix1 said:

IM ALSO NOT SAYING LED, CANT GROW REALLY GOOD WEED. IT CAN.
View attachment 5383846

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Where, in scientists wet dreams ?
Never smoked a worthy led bud... or one that can come near the same bud under the sun/hids

The 6K map is nice looking, not a lot of power in the reds though, which is the cause for the low lm output of mh bulbs in this color rating..
To me personally the 4200K is hard to beat overall if your growing for head stash only.

Also the 2K hps are very hard to beat as they show very similar results and not so far behind the higher kelvin ratings, I've grown for over 20 years and the day I'll take a 100k lm bulb over a 165k lm bulb has not yet come haha
Total output and each wave strength of that output is all that matters as long as your somewhat in the par range.

Says the blv is 5500k here

DanKiller said:

Where, in scientists wet dreams ?
Never smoked a worthy led bud... or one that can come near the same bud under the sun/hids

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I've grown with HIDs since 1996. Last year I switched to HLG Scorpion Diablo X for my main flower light. It works every bit as good as my HIDs and once I got my environment dialed for LED it's better. Moving from HID took some adjustment so possibly there are other issues with you having not experienced well flowered LED buds. Genetics are controlling, growth facility comes next etc.... So could be many reasons beyond the light unless all variables were controlled down to that. But anecdotally I'm LOVING my LEDS and have now swapped out everything to LED (HLG LEDs to be exact).

I'd select Sun if I could, but for indoor I'd say led, the diode light is more energy-preserving, not making too much temperature. I actually just use a grow purple light stuff I bought for rather not a huge price and it kinda works

I want to try a 1000w mh or cmh supplemented with different nm red led monos or high CRI low temp cobs. Seems like a good experiment. I am sorta doing this now but kinda just thrown together with very little thought or planning.