WeedSexWeightsShakes
Well-Known Member
I think a big issue is not staying in VPD. That seems to be where many issues are caused in my experience.
I Need Your Help! There's a New Light on the Block
- Thread starter MeGaKiLlErMaN
- Start date
jarvild
Well-Known Member
So lets do a comparison of the different lighting types and their PAR values and it's easy to see why people have trouble with LED's and not HID's.
Would you say that a plant vegged under 400 watts of MH putting out 400 ppfd at the canopy, and a 250 watt LED putting 800 ppfd at the canopy would require the same inputs that the MH would ?
Would you say that a plant vegged under 400 watts of MH putting out 400 ppfd at the canopy, and a 250 watt LED putting 800 ppfd at the canopy would require the same inputs that the MH would ?
NanoGadget
Well-Known Member
Uh..... no. It literally just meant turning my extraction fan down by about 20%. There isn't a single thing in my space that i didn't already use when growing under hps except the actual lights. Just saves me even more on energy costs.
ChiefRunningPhist
Well-Known Member
That's a big part of it I think. The light is just so/more intense.
lukio
Well-Known Member
sup man cheers. like, we should give @MeGaKiLlErMaN his thread back caused its been pillaged in standard RIU fashion. you got a diary bro? I think it was @Johnny Lawrence that nailed the problems with led being environmental, either in this thread or another.
Environment > Light
ChiefRunningPhist
Well-Known Member
Environmental plays a big role too, but you can't disregard light source and quality, lots of papers about plant morphology and SPD. I guess we can agree to disagree. No journal
ill put one together maybe
lukio
Well-Known Member
i hear ya! imo plants grow differently under led than hps. good friend of mine is a hps guy that grows all my cuts and his look different. yes to a journal though - not enough of those around!Environmental plays a big role too, but you can't disregard light source and quality, lots of papers about plant morphology and SPD. I guess we can agree to disagree. No journal
i just think if you give a plant enough photons it will grow, regardless of spd. if the environment is shit its not gonna be happy...so id put environment above light...that might just be me.