hang height

  1. B

    Light height for 4 ft tent

    I'm running a 2x2x4 grow tent with this light My question is, can I get away with hanging at the top of the tent and leave it at 100% or go with the manufacturer's instructions and dim accordingly to dial in ppfd range at given point of growth?
  2. B

    Just switched to led

    Just got a 45w full spectrum to start my seedling with instead of my cfl I’m having trouble figuring out the hang height Can anyone help me out. Their good seed to. Don’t wanna ruin em I’ve always done good with the cfl but wanna go led
  3. ChiefRunningPhist

    (μmol/s)/(PPFD) with respect to Hang height

    Hey guys, I'm looking for fixture PAR maps and the μmol/s output for the PAR measurements taken. Doesn't matter if it's lensed or not. If you've a saved PAR map on your phone or computer, post it up, thanks! 1. Total μmol/s: 2. PAR map(s) Trying to asses real world correlation between PPFD...
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