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Both these brand have the same features: a blue spike that hits both 437-450nm which seems to work by activating 2 separate chlorophyll systems. On the extra green in the new mammoth: Id like to see a little bit more than just screenshots with no links in order to believe this fully, it kinda...

Turn down the light a bit, maybe adding a little calmag to your watering, especially if your on RO water. Youre pushing your plants too much too early.

Those plants all look light burned, less light. Somewhat higher temps and rh. Are you feeding nutes or in the soil?

@OP that photbio light: dont recognize it nor from alibubbers or anywhere else, my best guess is that its a chinese rebrand from looking at its website; very little info (diode count and what brand/model, driver brand, parmaps). The advantage it give you is that you can take it to the shop...

I kinda agree cause theres a bit of transition. But in the end its really just about the basics: what temp/rh range in veg and flower, what distance between light and cannopy, how many watts per foot and how much nutes for the water i have and go. Problem is that many HPS to led converts have a...

No, most people want better, cheaper, less watts, better quality product and yield and simple but in the sense most people dont want to understand too much what their doing, youre correct.

Youre kinda explaining what im talking about: in order to use leds successfully you had to learn more about growing. But the argument you make kinda sounds like HPS is the preferable light if you dont want to care so much about your grow, as in making efforts. Did you get things dialed in with...

This is true (hps to led switch) but its equally true if you were to switch from leds to hps (edit) without adapting environment. HPS is great if you run a vented grow in cold environment with minimal climate control. But if you have any problems with either heat or getting close to your max...

For OP: also remember, no matter if its generator or batteries, you dont have to provide full light intensity during the outage, just enough to keep the plants awake. But either 11 hours or just letting it pass is going to work. If youre already on 7th week i dont think your plant is going to...

This may be a good alternative but a little over your budget for a 1k replacement (its a 1k DE replacement) https://horticulturelightinggroup.com/collections/refurbished-lamps/products/refurbished-hlg-750-diablo Why this: HLG have great aftersales and pretty much the best diodes, they...

The best place to start is setting a budget and then understanding the difference between growing with led and hid. Led gives more light per watt but doesnt add heat on the cannopy like a hid. Environmental control gets much more important as you need to tweak it, both temps and rh, to get the...

Something similar to this perhaps? https://www.digikey.es/es/products/detail/lumileds/L128-LME10L3500000/16729392 The spike looks a little wider than a standard mono, which is similar to the spectrum on the mammoth. If you got the connect and resources its not so hard to get a custom...

Youre probably right. Phosphor greens. That pic shows 4 different diodes except for the reds; you clearly see a warm white and a cold white, another blueish one that must be the evo mint, and another very green diode.

Far red (730nm) penetrates well, the rest of reds are generally very well absorbed by top cannopy, with 680nm being the least penetrating (but also one of the most photosynthetic efficient). But hey, maybe they made tests and saw green added yield. Dont know really. Blue is somewhat detrimental...

I think what looks like a green diode is actually the evo mint. Not sure though. Green monos are very inefficient, its easier to get green from a phosphor white.

It depends on drive current of each board, ask HLG about this really, maybe in their thread or directly to them. The boards can change a bit in spec depending on voltage bin (especially if its one of the older ones) so if you fins any markings with AX/AY/AZ or similar include this in your...

Mint white is the most efficient of all the evos, it has huge desirable blue spike, and then a little bump of green which is the most efficient phosphor. Maybe that "green for high intensity in flower" paper is just thrown in there for motivation after they made the design. They say green...

Many of them just quote nominal current efficiency of the diodes or board efficiency. 3.03 with driver losses and 1000w isnt easy, youd need an absurd amount of diodes. HLG does it with about 4000 diodes for 650w (iirc), but they seem to have all the best bins and drivers. Count the diodes, and...

This would be true about 1 foot tall tents. You need to incorporate height aswell to get the actual volume and air renewal speed

Then use 2 lights at less power? Another issue with light movers is that the two extremes of the mover will have less light than the middle so un even cannopy. youre just stretching the same light over a larger area, which is the same as 2 low power lights. But with a light mover youre...