After writing my post "LED lumens, again", I realized
that "how much", regarding "I get so much yeild" was,
itself, a useful statistic.
Under HPS, people used to talk about the achievable
goal of 1 gram (dried) per watt per grow season. I
never got much more than about a half gram per...
BEWARE, all ye potential buyers of LED Light systems:
In another post, I attempted to begin discusssing a
phenomenon, that numbers for radiant flux (which I
called, rightly enough, even acknowledging PAR, as
lumens) are not being given to us for evaluation.
Professional obfuscators, for...
On eBay, just now, I read through a listing titled:
"50*3W 90W UFO Hydro LED Grow Light Quad-band 7:1:1:1 for Flowering"
It explains that it uses 3W LEDs, at an actual power of 90 Watts,
with the detail: "Bridgelux RED 35 Blue 5 Orange 5 White 5 LED".
I've believed that Bridgelux sold...