GoodMorning
oldjarhead100, I'm glad to here it was a breeze, I sure wish i had one of those Prisms,no kidn, but we still outlawin down this way, and I would hate to lose it, by accident like when the the water meter reader smelled something or the gas company meter reader, caught a whiff, or even JehovasWitnesses. They come by all the time ,not worried about the mailman,lol,
I was to told what ever my lux meter red,you doubled the number, like if it reads 40lux, it's really 80lux, but i dont know if thats true, but with my 315cmh, at 18inches when flowering, my lux meter would only read 40k lux, so it think it worked right with my light, cause when i move it to like 15inches ,it would read 65k lux, which is really 130k lux, and my plants leaves, didn't like it that close at all,
But Nebulas 315cmh, she told me at 18inches, her lux meter, would read what it should like 65k-75k lux,
It might have been the different kind of light, she had, idk.I like that 10k finishing lamp, alot, but some of the scientist will say it don't work, it sure makes fine looking buds ,I know that much.
I wish i could tell you if you need only one, or if you need two, but i dont know the answer to that, I would think 2 finishing lamps would do great, but them damn, lamps are as high as a cats back, imo.
GrowersChoice could tell you though, I'm sure they will tell you need 2 because, of sales, but they have always been honest with me, everytime I talked to them, so i trust them alot. They might tell you ,that you only need 1 finisher lamp.so again,idk.
But I'm sure your gonna do great ,with your new grow light though. Like always.
Have a great day, my brother.
hal