Stephenj37826
Well-Known Member
Is that calculated or measured with a meter?
Most efficient chip
- Thread starter awil7698
- Start date
Is that calculated or measured with a meter?
BM9AGS
Well-Known Member
Thanks for sharing that!!~ 5 years ago- a life time in LED knowledge, a person who long since stopped posting added some great intel to my then thread. The highlight of which has to do with the extreme value of 630nms. So for whatever this is worth...
As one can see, the CREE Neutral White (I call it 'Goldilocks', because it's almost 'just right') has a RSPD that still allows nearly ~25% of its total power in the blue range (and plants only really 'need' ~8-10%), and more than 1/3 of which (i.e. the area under the curve) is over ~580nm or so (which has a Photosynthetic RS of over 90%!) - which is much better than even your typical 'Enhanced HPS'.
Couple that with strong white light (green-response chlorophyll extending throughout and deep into leaf structures, with a net effect at or near that of the (mostly) surface-level blue and reds), which also takes care of most of the ~660nm+ you actually need for photomorphogenesis - and you can get by with 630nm reds just fine.
(i.e. 630nm red is ~95% of the PSR of 660nm, AND they currently still have ~20-30% greater radiometric efficiency - as well as being cheaper than the deep reds - so there's more 'bang for the buck'):
Something like that would probably meet the needs of ~95% of today's growers.
Olive Drab Green
Well-Known Member
18x18 per emitter.
Stephenj37826
Well-Known Member
What meter?
Olive Drab Green
Well-Known Member
Ask @Rahz, he'd know better than me.
Greengenes707
Well-Known Member
What does finish sooner mean???
More ambers, receded pistils, swollen bracts????
1) More ambers...OK...so harvest plants the same day... dry, cure, and trim. Then lab test. Compare final weight(accumulation of biomass over time) and also compare THCa : THC∆9 : CBN. If it did finish sooner it should have more chemical degradation. Or is ripper will have higher values from being peak content.
2) Receded pistils- pics of comparison buds on same days from similar flower location. Comparative pistil length.
3) Swollen Bracts- pics of bracts on same days from similar flower location. Calibrator for diameter measurements.
More ambers, receded pistils, swollen bracts????
1) More ambers...OK...so harvest plants the same day... dry, cure, and trim. Then lab test. Compare final weight(accumulation of biomass over time) and also compare THCa : THC∆9 : CBN. If it did finish sooner it should have more chemical degradation. Or is ripper will have higher values from being peak content.
2) Receded pistils- pics of comparison buds on same days from similar flower location. Comparative pistil length.
3) Swollen Bracts- pics of bracts on same days from similar flower location. Calibrator for diameter measurements.
Yodaweed
Well-Known Member
@Stephenj37826 Doesn't even grow buds, he's going off what he sees from some guy on a forum...this isn't in any means scientific or accurate it's anecdotal at best.