Samsung lm301b or lm301h?

Hi everyone, i've been a lurker for quite a while here and seeing more and more grower switching to LEDs!

I'm in the process of upgrading my old 250watt HPS grow light to a quantum board and was originally looking at the samsung lm301b diodes but while I was researching I learned that Samsung has the newer lm301h diode.

It seems like it makes sense to buy the lm301h diode because they have improved light spectrum and intensity, I found Niemi LED who sells them https://niemiled.com/product/lm301h-260w-niemi-led-quantum-board/
 
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No the spec sheets are different because one is marketed in lumens the other photons. For some trusted sourced info check green genes vlog titled “Saturday morning live” It’s from last Saturday. Go to 5:30 in and watch. This man knows his buisness. I believe what he says.
 
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Personally I would go with COBs.
Or just screw in led bulbs.
The LEDs on quantum boards arent super special or anything. They are a BIT more efficient than some other SMD but no more than any COB. The spectrum isnt any different from a dollar store LED bulb with the same k.

Honestly though, for the price of a quantum board, you could have more than twice as much light for the same price using led bulbs, and have a better footprint.

Just my .02$
 
Hey so I saw this thread and I know I'm a bit late but I'd like to share some personal experience and opinion based on what I've learned. Samsung diode lm301h is actually more effective in transferring energy from electrons. Depending on who builds the board you are looking at 2.7-3.03 μmol/J for the lm301h. The lm301b tops at about 2.7-2.8. So there is a difference but it's subtle. Running a 3500k spectrum with either diode you will achieve about the same results (assuming all other conditions are the same). Unfortunately new growers focus so much on these little things that they forget the magic is in the soil and nutrients. My advice is go with the cheaper diode and spend the extra money on a good organic potting soil and/or quality genetics. Those two factors will be weather you grow top shelf or not. I currently run a 480 watt QB lm30lh (dimmable) and a 480 watt lm301b, both with IR and UV chips and honestly they both look to be affecting the plants the same. That's my 2cents ✌
 
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There is pretty much no difference. Its branding. People pay more for something if they think its horticultural.

The "difference" is 0.05, well within error bars or within the +- ratings. You will find the same difference between most LEDs of the same designation I'm sure.

I go even further for efficiency, I don't waste a single watt of my quantum board on red ir or uv. Check out the efficiency of those red ir and uv chips. I'm not sacrificing wattage that could be better spent running lm301's, to run inefficient heaters that burn out fast.
 
There is pretty much no difference. Its branding. People pay more for something if they think its horticultural.

The "difference" is 0.05, well within error bars or within the +- ratings. You will find the same difference between most LEDs of the same designation I'm sure.

I go even further for efficiency, I don't waste a single watt of my quantum board on red ir or uv. Check out the efficiency of those red ir and uv chips. I'm not sacrificing wattage that could be better spent running lm301's, to run inefficient heaters that burn out fast.
I'm not trying to be mean or anything but in your last post you suggested COB and now your saying you have a QB with no IR or UV. Hmm.... Having 25 UV and 25 IR chips out of 1200 diodes running at 480 watts is nothing (true 480 at the wall with no fan), you aren't sacrificing anything actually only stimulating photosynthesis and promoting the plant to Initiate it's immune system (which increases tricomes and THC Obviously) Running top bin diodes you don't lose anything. Do the math. Sorry bro mic drop ⚡
 
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I'm not trying to be mean or anything but in your last post you suggested COB and now your saying you have a QB with no IR or UV. Hmm.... Having 25 UV and 25 IR chips out of 1200 diodes running at 480 watts is nothing (true 480 at the wall with no fan), you aren't sacrificing anything actually only stimulating photosynthesis and promoting the plant to Initiate it's immune system (which increases tricomes and THC Obviously) Running top bin diodes you don't lose anything. Do the math. Sorry bro mic drop ⚡
Yes, much can change in 3 months. I have since switched to quantum boards with the lm301 leds. There is an entire thread here in where I ask about quantum boards, do some research and learn just how much better they are.

People learn, opinions change. Mic drop? How old are you? 🤭
 
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I didn't say not to use ir or uv. I didn't even say I dont use it. I just said I dont want to waste the wattage of my fixture on inefficient ir and uv LEDs that burn out faster.

What I actually do is supplement my light with other smaller, cheaper, easily replaceable when they burn out lights.

I guess this is where the kids drop the mic.....

🤣
 
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i found my spider famer Q boards to be very fair priced as for lights with the features i needed . far less than what most suggested lights go for. i'm halfway through my first grow so i can't possibly know shit. but so far i would say this to a new grower. pick a price point and get the best light you can at that price. then worry about all the million other things that will come up and demand your attention. so some degree, a basic light, fresh air, grow medium and some nutes from time to time and shot will grow. and toss out the notion that you can push a plant etc etc, and learn, practice good grow habits. upgrade your gear when you have extra loot and your skills demand it. in short lights are only one part of the larger picture of growing successful cannabis.

OG
 
I really don't care. You just shouldn't give out incorrect information. I've been running QB for a few years I don't need you to tell me to do research when I'm the one to post factual info and your sentences are scrambled with opinion and zero scientific explanation.
 
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I really don't care. You just shouldn't give out incorrect information. I've been running QB for a few years I don't need you to tell me to do research when I'm the one to post factual info and your sentences are scrambled with opinion and zero scientific explanation.
What is it opinion or incorrect information? I make it a habbit to point out these are my opinions. Like starting off with "personally I would" and end with things like "that's just my 2 cents". To make it obvious it's my opinion. As we have already established, I was unaware of the lm301's vast difference of efficiency.
And now I know. Are you trying to say people shouldn't learn? Or listen to and be convinced by others of the facts?

Seriously man. Its like you're trying to belittle me for learning and changing my mind. How fucking sad is that?
 
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