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70 W system challenge LED vs. HPS #2
- Thread starter Medved
- Start date
WyattHerbShiva
Member
cool.
Havin a 70w myself this is interesting.
May iask what the LED-lightframe cost you?
Cheers & thx for sharing.
Whs.
Havin a 70w myself this is interesting.
May iask what the LED-lightframe cost you?
Cheers & thx for sharing.
Whs.
IMO, based on what I read, what conventional LED's lack are UV light (they have these now) and some far-red light for flowering because as you know the theory is that phytochrome far-red degrades into phytochrome red as a measure of the length of the night, cannabis being a short-day plant. Far-red (Pfr) and red (Pr) reverses during the day within a couple of seconds, so being that there's more far-red light during the winter, that's what actually tells the plant to finish, is Pfr light. This far-red light would hit the plant, reverse into Pr, and the plant at the end of the night would use the amount of Pr it has to tell how long the night was.
In short, as was said before, HPS has a little UV in it, it also has a little far red (700+ nm). In my opinion, in "theory", this little bit helps it go a long way.
Also, I wonder if it's possible to run a reverse LED-frame under the plants in between each row. That's the advantage of LED's I think is that you can fit them in all these hard to reach places - they're small and low heat. I think LED's aren't being used to their full capacity since so far they are being used like conventional fluoro lighting, all in a panel from above.
Anyways,
Great thread you have here! You are a hero of sorts... I mean, LED's produced not-so-good results the last two times around, but that's not enough to put you down from keep trying to improve in experimenting with this new lighting and venture into new grounds.. You are the man!
In short, as was said before, HPS has a little UV in it, it also has a little far red (700+ nm). In my opinion, in "theory", this little bit helps it go a long way.
Also, I wonder if it's possible to run a reverse LED-frame under the plants in between each row. That's the advantage of LED's I think is that you can fit them in all these hard to reach places - they're small and low heat. I think LED's aren't being used to their full capacity since so far they are being used like conventional fluoro lighting, all in a panel from above.
Anyways,
Great thread you have here! You are a hero of sorts... I mean, LED's produced not-so-good results the last two times around, but that's not enough to put you down from keep trying to improve in experimenting with this new lighting and venture into new grounds.. You are the man!
Medved
Member
newbgrow nice to see you here.
Here is a little update
girls are in 33 days of flowering and I noticed some seed production. It just looks like that some males that I have in other room opened their sacks and pollinate my boxes
I didn't notice no opened sacks in the males. well here you can a see a pic of seed
and a pic of macro bud under LEDS
there are also seeds in the HPS room. I just hope that there are not too many seeds.
The father must be Pakistan Valley.
Here is a little update
girls are in 33 days of flowering and I noticed some seed production. It just looks like that some males that I have in other room opened their sacks and pollinate my boxes
I didn't notice no opened sacks in the males. well here you can a see a pic of seed
and a pic of macro bud under LEDS
there are also seeds in the HPS room. I just hope that there are not too many seeds.
The father must be Pakistan Valley.
stinkfinger
Member
Hey man I really like your experiment. Seeds f ucking suck man. Your plants will put most of their energy into producing SEEDS instead of RESIN = ( . If you tossed the males soon enough and most of the buds werent pollinated, you may have just a few seeds spread throughout your buds. Best of luck to you!!!
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Green Lion
Member
Nice grow man! I've thought of LED growing and at the moment I'm not doubting it's efficiency one bit. Considering the possible heat-problems HPS-lights produce and the cost in a longer period of time, I'd rather take LEDs, especially for a stealth grow.
What kind of LEDs are those? I was just wondering if you can just go buy em in an electronic shop or did you need to order them from somewhere? I'm from Finland so no need for specifics, just on how regular are those LEDs. What's the blue/red ratio in that setup?
Keep up the great work!
What kind of LEDs are those? I was just wondering if you can just go buy em in an electronic shop or did you need to order them from somewhere? I'm from Finland so no need for specifics, just on how regular are those LEDs. What's the blue/red ratio in that setup?
Keep up the great work!
Medved
Member
thanks for stoping by
green lion,
here is some info that you need
400: 25°, 40mW/sr
465: 18°, 11cd typ
630: 20°, 14cd typ
660: 30°, 4cd typ
the number of each led ratio used here is 1:1:4:4 in the order that are written above.
I buy them in Germany, better leds for lower price.
today was 50 days of flowering, and the girls look like this.
HPS room
and LED room
and some LED macro
everybody have a nice time, and let's countdown about 10 days till end
hardly wait
green lion,
here is some info that you need
400: 25°, 40mW/sr
465: 18°, 11cd typ
630: 20°, 14cd typ
660: 30°, 4cd typ
the number of each led ratio used here is 1:1:4:4 in the order that are written above.
I buy them in Germany, better leds for lower price.
today was 50 days of flowering, and the girls look like this.
HPS room
and LED room
and some LED macro
everybody have a nice time, and let's countdown
about 10 days till end hardly wait
Green Lion
Member
Thanks for the info. Which shop do you order from? I could order some myself. I noticed a circuit breaker on the board, are there any other components involved? What would the led ratio for vegging be?
The two grows look pretty much the same to me. Looks like it's gonna be a very tight match. Can't wait to hear the results!
Have you had any unusual problems with the LED plants or with the chamber?
The two grows look pretty much the same to me. Looks like it's gonna be a very tight match. Can't wait to hear the results!
Have you had any unusual problems with the LED plants or with the chamber?
G
Guest
medved, i have to commend you for an outstanding round 2, but i must ask if you have been feeding them. they look very healthy despite you saying they would be water only? was your soil fully amended? i think it looks great regardless i'm just curious if there was a dramatic difference between nutrient/water consumption between the 2 spaces.
Medved
Member
helou everybody
Green Lion all this questions you will have to ask LED_experiments because he made me this panels. And I haven't noticed nothing strange, but all the buds looks pretty small
ninjagrow, thanks for kind words
Murphy thanks for stopping bye, here you can see some more pics
rkrone, yes I feed them with nutes, but not in the beggining, when I found the girls was low on nitrogen, I start to feed them. Don't remember exactly when was that date, but I think that I write here in jurnal.
slimshady, It looks like that I will soon come to the end
well here is a short update, pics are 3 days old (have some problems with upload them on ICmag) the girls are now in 55 days of flowering
and here are a few pics
Have a nice sunny day everybody
and stay cool
Green Lion all this questions you will have to ask LED_experiments because he made me this panels. And I haven't noticed nothing strange, but all the buds looks pretty small
ninjagrow, thanks for kind words
Murphy thanks for stopping bye, here you can see some more pics
rkrone, yes I feed them with nutes, but not in the beggining, when I found the girls was low on nitrogen, I start to feed them. Don't remember exactly when was that date, but I think that I write here in jurnal.
slimshady, It looks like that I will soon come to the end
well here is a short update, pics are 3 days old (have some problems with upload them on ICmag) the girls are now in 55 days of flowering
and here are a few pics
Have a nice sunny day everybody
and stay cool
Green Lion
Member
Thanks for the yummy pics medved!
LED light has a low penetration, that could be the reason for the small buds. But that's pretty much the only bad thing in LEDs. I'm gonna consider a LED PC grow in the future. For stealth reasons.
LED light has a low penetration, that could be the reason for the small buds. But that's pretty much the only bad thing in LEDs. I'm gonna consider a LED PC grow in the future. For stealth reasons.
Medved
Member
well today is 60 days of flowering, and scisors are sharp I just trimmed all 6 girls in the LEDs room and have to trim 6 girls under HPS. I take a little break for little update
here are the pics
about 2 of the AK-47 under leds was like this big, 2 were a little smaller, and 2 was very small (not a lot buds on it)
hmmm, do you know what is that? it looks like amber (like a amber from spruce)
here is a bigger pic
and another
here you can see seed production
and all the seeds from LEDs room (about 100 i think)
and here you can see all 6 of AK-47 drying from led room
and now I will go back to work, HPS girls are waiting for me
have a nice day
I just trimmed all 6 girls in the LEDs room and have to trim 6 girls under HPS. I take a little break for little update here are the pics
about 2 of the AK-47 under leds was like this big, 2 were a little smaller, and 2 was very small (not a lot buds on it)
hmmm, do you know what is that? it looks like amber (like a amber from spruce)
here is a bigger pic
and another
here you can see seed production
and all the seeds from LEDs room (about 100 i think)
and here you can see all 6 of AK-47 drying from led room
and now I will go back to work, HPS girls are waiting for me
have a nice day
