are 4100k are ok to veg my plants
- Thread starter kenoster
- Start date
Ethnobotanist
Well-Known Member
homegrownboy
Well-Known Member
u want 6500K for veg..it stimulates rapid growth in stem and leaf...at flowering time u would use the 2700k
homegrownboy
Well-Known Member
stay away from the red spectrum whike in veg....too much red and you end up forcing it into bloom...not a bad thing if you want short plants with a low yield. i'd say stick to the 6500K lights for veg...and move to the 2700k at bloom
jweb
New Member
i'v had good turn outs with the 4100 kelvin bulbs. i use 12 x 100 watt cfl for veg and then i add 8 2700k 100 watt for flowering for a total of 20 100 watt cfls for flowering. little late to the post but someone else might find this usefull. and this is for 5or 6 plants
i do agree that 6500k would be better them change to 2700k but that is a lot of money on cfls.
i do agree that 6500k would be better them change to 2700k but that is a lot of money on cfls.
Wastei
Well-Known Member
4100K is fine for veg. Many people just use HPS from start to finish @ 2700K. The old saying was 6400K for veg MH and 2700K for bloom with HPS. Doesn't really matter that much as long as the plant got adequate lighting (PAR).
Most LEDs are 3000-3500K and people use those as well from start to finish successfully.
xtsho
Well-Known Member
If you have the light too far away. I've vegged under HPS and I've never had plants stretch a lot. They may stretch slightly more but not enough to make any difference as long as you provide adequate light. What books are you reading? If they're cannabis specific you might as well toss them in the trash as many are full of cannabis broscience and not facts.
Yes absolutely that's around the required colour for veg just like a mh bulb.
My Led is a veg light it's 4k
Kassiopeija
Well-Known Member
It's the ratio of Far-Red to Red that causes excessive stretching, or the lack of suppressive UV/blue
xtsho
Well-Known Member
It might cause more stretching but that can easily be minimized by having enough light. I've vegged under MH and HPS. The HPS might stretch slightly more but if you have enough light it's really not much of an issue. I think light intensity is more of a factor with stretching than spectrum. You're better off worrying about light intensity than spectrum.
As to the OP's question, 4100K will work just fine for veg as long as they have enough watts. It doesn't matter what the spectrum is. Not enough light of any spectrum will cause plants to stretch. Given enough light it really doesn't matter what spectrum you use.
For the record, I currently veg under 6500K HO T5's. Prior to that I was using 3500K bulbs. I've also used a mix of 3500K and 6500K bulbs. The 6500K definitely produce plants with tighter nodes but the 3500K's are not that much different from my experience.
This plant was 14" and had 7 equally offset nodes before it started growing offset nodes and there were 3 of those so 10 nodes for an average of 1.4" between nodes. I've had the same growth under the 3500K bulbs. The amount of stretch difference between the 6500K and 3500K was less than 2".
