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We may be under attack!
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I was just getting ready to learn a shit pot full of knowledge about sea o green growing! Was dude a spy from another weed site?
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North Korean hacker?
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Maybe Iranian!
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Most likely. Or a cop. Wierd to delete all their posts right?
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Lmfao this gif also returned when i searched for “seems plausible!” 
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I was about to give him my CC# and SS# for his Learn to grow SOG system! $19.99 + shipping and handling. Lol
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Inspector @Hobbes u got some investigating to do!
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As new folks arrive should we tell them to fuck straight off until they’re properly vetted? Lol
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I don’t really have the social skills to deal with this!
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lol
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They are the best in the game personally I like the t12s myself but can’t go wrong with either the Super B’s or Flower Powers they both work better than anything else on the market.
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The problem is mostly physics + materials science.
White LEDs and normal grow LEDs are usually based around blue InGaN diodes with phosphors converting part of the light into other colors. Those materials are very mature and efficient.
UVB is different.
To make true UVB (280–315nm), manufacturers usually have to use:
aluminum gallium nitride (AlGaN)
specialized substrates much higher aluminum content in the semiconductor
As you push shorter wavelengths:
efficiency drops hard
heat density rises
crystal defects increase
electron leakage gets worse
light extraction becomes harder because UV gets absorbed by packaging materials
So instead of converting a good chunk of electricity into photons like a white LED:
a UVB diode wastes way more energy as heat
the junction runs hotter
degradation accelerates
That’s why a UVB LED that looks “50W” electrically may only produce a tiny amount of actual usable UVB photons compared to visible LEDs.
Why they don’t last long
UV light is brutal on basically everything, including the LED itself.
UVB photons have enough energy to slowly damage:
encapsulants
silicone coatings
bonding materials
phosphors
wire bonds
lenses
even the semiconductor lattice itself over time
The shorter the wavelength, the worse it gets.
A normal white horticulture diode might maintain useful output for:
50,000+ hours
A lot of UVB emitters lose output VERY fast because that wavelength just destroys stuff regardless of it’s source.
once you try making enough UVB intensity to matter in a high intensity grow space, the cost and lifespan problems get ugly fast.
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