mismos00
Well-Known Member
This guy has the right idea about how lumens work!hey bro it all takes place in the hoodmine is at 10in and no prob.i'm not even cooling the light it has 8" hole on each side.Light works like this it is mearsured at 12" from canopy 50,000 lumens and the farther away it gos it loses lumens by half like 18" 25,000 lumens at top of canopy.Now if ur plant is 3 feet tall the light is 4ft from base of plant if my math is right about 12,500 lumens.so the closer u get the light the better off u are.If i cooled my light could get it about 6in away and that means now the lumens are 100,000 lumens at the top of my canopy and thats basicly how light works.good luck bro!!HOPE THIS HELPS!
What he is saying is that every 6 inches further from the light you get, you lose half the lumens (or for every foot you move away the lumes drop to a quarter of the strength...
So a 1000w light that puts out...
160,000 Lumens at 1 foot
40,000 Lumens at 2 feet
10,000 Lumens at 3 feet
... (after this point you won't get optimal growth.)
Therefore, the higher the wattage/lumens, the better your canopy penetration will be and the taller plants you can grow.
Edit: Fucked up my math.