Now they do they didn’t originally. They originally had this
I installed this
And yes I have the newer model also with the xlg-240-h-ab but it can’t be turned up like the XLG-240-h-a light can. That dimmer is holding you back.
That dimmer isnt even being used. I run at 100% with dimmer circuit broken… Please. Research better
Not all of them did though, some of them were shipping with meanwell elg drivers 
@Dankloud m301b and 301h are the same, but that doesn’t mean sf or anyone else uses same flux and voltage bin. Hlg has Samsung on lock and is going to get highest available first and always. Conventional thinking here says maybe sf is willing to make less profit and will sell same thing for slightly less money. But they also have to pay someone to make their boards. So more likely just getting lower bin at cheaper price. Then you have xlg driver which is cheaper than hlg driver, and now it seems like hlg is sending invertronics which is superior to meanwell.
Yes the new h diodes I’m sure we’re primarily made for hlg, since the h in both means the same thing. And HLG has been pushing for official partnership with samsung for a long time. Don’t know if they have it yet. Would be crazy to see their emblem next to samsung at events tho, that’s when you know a company is in another’s pocket. The new HLG boards are also made by samsung. So it’s all samsung and invotronics for them now. Seems like they got other companies doing all the work, but it works well for them.
Please explain how you’re running it 100% on a ab driver
Depends on your definition of 100%. No one runs their LEDs at 100% capacity. They would burn out in minutes.
You said it I’m trying to figure out how. Can you make your diodes blink from overload? I can.
I run the lights at what the manufacturer recommends the max. Even the manual says if you fuck your shit up, that’s on you.
At the same time I’m sure the new vfd I have that can be used on any machine I own, could easily blow the sf2000 in a couple minutes if i wanted. But that’s reckless and uneconomical.
H diode isn’t new though. H is for horticulture, same led as 301b but provided with radiometric flux data instead of photometric flux data. While I can’t say for sure all of their boards are made in house, at least some of them are, right here in USA. So definitely a little different than sf or budget led just farming out copies of someone else’s stuff.
Ah. Was not aware. Just seemed like hlg recently started using the horticulture diodes. All the older models I see used b. The “diablo” series is the one that uses quantum samsung boards for sure. As the stats in the 650R shows.
You want hlg drivers not xlg, learned that one trying to save $
. My next light
Questioning your authenticity… 
Sounds right. There was error on data sheet that made a specific cct look like the h was higher performance level than b. Caused some dissent among lighting community for a bit, and people who didn’t know aby better were demanding 301h over 301b. The powers to be have straightened out since. I don’t see any reason to not use 301h in horticulture application, but it doesn’t matter. Should be more concerned that you have highest flux and lowest voltage bins.
Samsung claims to maintain +/- 5% flux. +/-.1 forward volt tolerance on the 301s. Guess 5% over 400 diodes would add up greatly. Edit. Technically a range of 10%. Since can be 5 over or under.
Even if Spider Farmer or Mars Hydro used the exact same parts as HLG, I would pick the HLG light every time, it’s more that just the parts used, it’s also the warranty support. I’ve seen how awesome HLG is, they will overnight you parts to get you back in the game after a quick phone call, good luck getting that kind of support from a chinese company. I also like supporting USA companies whenever I can, means much more to me than saving a few bucks.
For sure. It’s funny that Asian companies make more products in america than america tho. Like Toyotas, which are pretty much made entirely in US by americans. Cheaper than shipping them across the ocean. While the american vehicles are made in mexico. Lol.
You are looking, but not at all of the data. The tolerances apply to each specific bin. But 10% is huge increase in led tech too. Like 3 years worth of r&d. When a new model comes out and makes old stuff cheaper that is typically for something like a 3% gain in efficacy. 10% represents about the difference from original qb to 288 r-spec. So if there was lower bin sold at lower price it could be equivalent to top bin of older tech, which is also cheaper.