G
Guest
Wow,best of luck!Gonna be a mini jungle in there! 
-
ICMag with help from Phlizon, Landrace Warden and The Vault is running a NEW contest for Christmas! You can check it here. Prizes are: full spectrum led light, seeds & forum premium access. Come join in!
Atao Riddim
- Thread starter Roms
- Start date
You'll be fairly busy with plants soon, Roms.Bon i innovate my culture mode to try a repro...
x50 in 0.8m²
View Image
Now Lambsbread x33, Mazari x9 and Sweet tooth x 8 are in water since 24h. Will see the number final?
++
Good luck.Those wing-reflectors really are the business if you can use them and can handle the heat from the bare HPS bulb. They give great light focus and coverage, and will help you to get the best out of a light bulb. I just had too much heat issues in my small set up with a 250W on one of those Wings, so i had to go back to cooltube. One of these wings with a cooltube-like cooling on it would be awesome.
Many blessings on this epic run my friend!
Goa', Buddah' thanks to inflate the luck, the best is ready thx again!
About the heat the CMH is less burning than the HPS, also the fan is directed towards it and all the lower vents remain open. But there is still too hot and not perfect ya! I look forward the LED lights to make it better, something that i hope from Santa Claus, the Ispectrum from Exciteled.de!
The first sprouted seeds will be in the batmix tonight!
About the heat the CMH is less burning than the HPS, also the fan is directed towards it and all the lower vents remain open. But there is still too hot and not perfect ya! I look forward the LED lights to make it better, something that i hope from Santa Claus, the Ispectrum from Exciteled.de!
The first sprouted seeds will be in the batmix tonight!
Yea, proper LED lights beat HPS/MH all day long in tent grows.Goa', Buddah' thanks to inflate the luck, the best is ready thx again!
About the heat the CMH is less burning than the HPS, also the fan is directed towards it and all the lower vents remain open. But there is still too hot and not perfect ya! I look forward the LED lights to make it better, something that i hope from Santa Claus, the Ispectrum from Exciteled.de!
The first sprouted seeds will be in the batmix tonight!
I just went for 3500K Cree COB-kit myself. Three Cree COBs running on about 50-55 watts each gives me much more and better light than a 250w HPS, with less heat. Summer grows will be a breeze with these!
Have you looked into these DIY COB Led sets? 4x 50 watt Cree COBs-set with a dimmer would be perfect for your tent.
4 x Cree CXB3590 at 50 watts each with reflectors would be 381 Euros
€414 with Glass lenses.
You might find cheaper kits by googling around.
I went for 90 degree glass lenses myself.
You'd need to make a frame from L-profile aluminum or hang them separately. I made a frame myself costing me under 30 euros. These COB sets are easy to put together and there's how-to pages all over the internet.
Cree CXB3590 Set's - 50W per COB with Reflector
https://www.lientec-led.com/collect...-pro-cob-mit-reflektor?variant=20861775609969
Cree CXB3590 Set's - 50W per COB with Glass Lens
https://www.lientec-led.com/collect...b3590-sets-50w-pro-cob?variant=20827391819889
Sticky Sat
Active member
All the best with this run brother...
+1 for cob leds
Vibes GoatCheese, thanks for your advices and the "Do It Yourself" it saves money it's clear! ^^
A square or round frame have to be built, i will think about that, even if LEDs emit less heat their distances between them and their ventilation must be well thinking to maximize their lifespan! This autumn i will think about all this calmly.
Sti', Aza', Budd' thanks brothers!
Azagual, good outdoor run with your Double Jam F2s?
A square or round frame have to be built, i will think about that, even if LEDs emit less heat their distances between them and their ventilation must be well thinking to maximize their lifespan! This autumn i will think about all this calmly.
Sti', Aza', Budd' thanks brothers!
Azagual, good outdoor run with your Double Jam F2s?
Yea, i recommend you'll go with these DIY-kits rather than you buying one or two of those plug-and-play LED lights. You'd save money, imo, as you said.
The problem for me with these ready to go LED panel lights is, even if they have COB leds in them, the leds are usually concentrated on fairly small area, creating a fairly narrow light column. While with these heatsink COB-kits you can place them on wider area, which will give you better and more even light coverage inside the tent.
Here's are few how-to-do-it tutorials from other forums. And you can find many others with little effort. Check em out to see how easy it is to put one of these together. If i managed to do it so can anyone else.
https://www.opengrow.com/topic/51343-300-watt-diy-cree-cob-led-fixture/
https://www.autoflower.net/forums/t...-and-grow-featuring-dinafem-auto-fruit.55390/
How big was your tent again? 80 cm x 80 cm?
If it's 80x80cm, i would make a 45x45cm frame and put a COB in each corner.
I would use 15/15mm or 20/20mm L-profile aluminum which has a thickness of 1,5mm or 2mm. Nuts & bolts and/or rivets to smack the thing together. Then drill 5mm holes for key chain rings in each corner for hanging. Done. Nothing fancy but it works.
I have three Cree COBs running on about 75 watts each Max, and when i dim them to consume about 50 watts each the heatsinks feel a little warm to touch and i have few clip on fans to blow on them in a 50 x 90cm tent. Sure COBs will create some heat and you need to cool them, but it's nothing near a bare HPS bulb.
Mmmh merci Goa'!
En vrai i'm not hot yet to really start the LEDs, it is saving energy and money but in terms of performance i'm still a little doubful especially in terms of penetration with flowering big sativa hehe! Well i have to study the thing step by step according to my needs.
About the DIY aluminium frame that's not a good idea too high thermal conductivity i think, i would rather choose wood, plastic or carton?
En vrai i'm not hot yet to really start the LEDs, it is saving energy and money but in terms of performance i'm still a little doubful especially in terms of penetration with flowering big sativa hehe! Well i have to study the thing step by step according to my needs.
About the DIY aluminium frame that's not a good idea too high thermal conductivity i think, i would rather choose wood, plastic or carton?
Demat Roms,
[FONT=Arial, Helvetica, sans-serif]
[FONT=Arial, Helvetica, sans-serif]Found some interesting females (8) and also firm males (6,at least they're firm until now), but all are only starting to flower, let's see if i am able to somewhat finish them and use them to produce some F3 ... only time will tell.[/FONT]
[FONT=Arial, Helvetica, sans-serif]
[/FONT]
[FONT=Arial, Helvetica, sans-serif]Chañs vat & Kenavo
[/FONT]
[FONT=Arial, Helvetica, sans-serif]
[/FONT]
[FONT=Arial, Helvetica, sans-serif]
[/FONT]
[FONT=Arial, Helvetica, sans-serif]Found some interesting females (8) and also firm males (6,at least they're firm until now), but all are only starting to flower, let's see if i am able to somewhat finish them and use them to produce some F3 ... only time will tell
.[/FONT][FONT=Arial, Helvetica, sans-serif]
[/FONT]
[FONT=Arial, Helvetica, sans-serif]Chañs vat & Kenavo
[/FONT]
[FONT=Arial, Helvetica, sans-serif]
[/FONT]
Attachments
Last edited:
Noz vat Aza'
Ya clean stuff breur danke for the view! Nice ratio for your selection, by waiting their sex stability of course but it's a good start for now! It seems that their apex start to bug a little due to your greenhouse height limit? Tropical jungle genetic at 50°N daaa wwoww!
Auch gluck zu dir mein freund!
Ya clean stuff breur danke for the view! Nice ratio for your selection, by waiting their sex stability of course but it's a good start for now! It seems that their apex start to bug a little due to your greenhouse height limit? Tropical jungle genetic at 50°N daaa wwoww!
Auch gluck zu dir mein freund!
Trugarez for the very kind vibes,
just to clarify and to not evoke a false impression with an all to good f/m ratio ( should have expressed myself better).
Sown 39 seeds im march/ 24 of 39 germinated into seedlings/ 2 died in seedling stage/22 left of which 8 showed severe crinkling or mutations/these 8 were isolated/14 healthy plants were left /out of 14 are
8 females and 6 males/ picture shows 8 DJ females and 4 Jam'16 females.
Real DJ female-maleratio would be 15 females and 7 males.
Anyhow trugarez for the vibes and really curious to also see your Mazari
. Yec'hed mat & ken emberr
just to clarify and to not evoke a false impression with an all to good f/m ratio ( should have expressed myself better).
Sown 39 seeds im march/ 24 of 39 germinated into seedlings/ 2 died in seedling stage/22 left of which 8 showed severe crinkling or mutations/these 8 were isolated/14 healthy plants were left /out of 14 are
8 females and 6 males/ picture shows 8 DJ females and 4 Jam'16 females.
Real DJ female-maleratio would be 15 females and 7 males.
Anyhow trugarez for the vibes and really curious to also see your Mazari
Sticky Sat
Active member
Best of luck for all your projects brothers...
Yea, light penetration is not as good from Leds as from a HPS, thou COBs have decent penetration compared to "normal" leds. But what compensates it abit is the advantage of having many light spots/sources from a DIY COB fixture compared to the one spot of light from a single HPS bulb. = light from several COBs hit the plant from different angles.Mmmh merci Goa'!
En vrai i'm not hot yet to really start the LEDs, it is saving energy and money but in terms of performance i'm still a little doubful especially in terms of penetration with flowering big sativa hehe! Well i have to study the thing step by step according to my needs.
About the DIY aluminium frame that's not a good idea too high thermal conductivity i think, i would rather choose wood, plastic or carton?
Yea, look into them and esp. how they work with growing Sativas. Plenty of grow threads and photos of COB grows around the internet. Ofcourse you could use different type of light for different grows, using your CMH only when you think you have to.
My tent is not so tall so i top my plants many times usually anyway, growing many colas on wider and shorter plants, so lesser light penetration from the COBs didn't have a negative impact on my growing at all. And now i have three light spots instead of the only one from a HPS, giving me more even light to every part of the tent. Perfect.
***
**
If you're thinking about maybe burning your fingers on the Alu-frame, then don't worry, COBs don't run that hot. My Alu-frame stays about normal room temp, =i can't notice any warming up, and the heat sinks seem only slightly warm when i put my hand on top of them running the COBS with, i guess, maybe 50-60 watts each. I have 166mm round heat sinks on my COBs and glass lenses which will trap more heat than open COBs and warm the heat sinks abit more
I was thinking about the bad conductivity that alu can create between COBs? It must be light but i wonder if too much heat can have an impact on the lifetime of the LEDs?
Thanks for your experience Goa' i understand how LEDs are just perfect compared to HPS in a small set up! Here i have 1m80 height so the penetration light is important, maybe i will use neon tubes in the 4 corners...
Thanks for your experience Goa' i understand how LEDs are just perfect compared to HPS in a small set up! Here i have 1m80 height so the penetration light is important, maybe i will use neon tubes in the 4 corners...
No, the heat sinks are also made from aluminium, cause it transferees the heat away from the COB chip so well. So you actually want the chip to be attached to the Alu heat sink as well as possible for that very reason; so that they would cool the chips.
..that German Led light you were thinking of buying most likely will have Alu heatsink(s) in it also.
People also run computer fans attached to the heat sinks to blow the warm air away, but i just have few clip-on fans blowing at them in the tent. Some of the COB sets come with computer fans included but not all.
Sure operating temperature will have an impact on the life cycle of a COB, but so it also does on your HPS/MH set up for the bulb and the ballast. I've read that low quality COBs have shorter life span.
..that German Led light you were thinking of buying most likely will have Alu heatsink(s) in it also.
People also run computer fans attached to the heat sinks to blow the warm air away, but i just have few clip-on fans blowing at them in the tent. Some of the COB sets come with computer fans included but not all.
Sure operating temperature will have an impact on the life cycle of a COB, but so it also does on your HPS/MH set up for the bulb and the ballast. I've read that low quality COBs have shorter life span.
