REALSTYLES
Well-Known Member
You need to look at my threads and my Youtube
ChilLED grow light
- Thread starter Hort_Hydro_76
- Start date
Enigma
Well-Known Member
Just link it here where you tested equal wattage.
REALSTYLES
Well-Known Member
What part of looking at my threads or Youtube you don't understand? I've done a lot here and don't have time to hold your hand just google REALSTYLES led and you'll see
hillbill
Well-Known Member
Be careful @REALSTYLES. Helpful people can get shit on here.
wietefras
Well-Known Member
Helpful people are fine. People who give incorrect answers claiming they are right because "they have been doing this for 40 years" rightfully "get shit". That's a huge distinction.
While Realstyles is more part of the "helpful people" category, unfortunately there has been an influx of people in the latter category "lately". So don't confuse the "shit those get" with what actually helpful people do and get.
While Realstyles is more part of the "helpful people" category, unfortunately there has been an influx of people in the latter category "lately". So don't confuse the "shit those get" with what actually helpful people do and get.
REALSTYLES
Well-Known Member
180w CXB3590 6500k DD bin 2x4 tent
This is the plants 30 days later as you can see the other plants had to go elsewhere
This is the plants 30 days later as you can see the other plants had to go elsewhere
VegasWinner
Well-Known Member
You can use the new 1050b drivers and they dim to 10% so dimming would give you the same result just more flexibility. Question why such a low wattage? vegging?I was talking about running 36 x 90watt boards at 350ma ( about 27 watts a sq ft)
BobCajun
Well-Known Member
I fixed the link in my last post, if anyone tried it before. Accidentally pasted that quote into the url box instead of the url, sorry bout that. Handy page because it tells you how much AC wattage you need per lamp wattage, 0.4. That's if you don't vent the heat some other way.
BobCajun
Well-Known Member
Haha, Growcob5, funny. The name I mean, not the video.
BobCajun
Well-Known Member
Just can't believe it huh? Seems unituitive but nonetheless does make sense when you think about it. In a white sphere, for instance, all the light is reflected (presumably) so it would bounce around until it collides with other photons, converting it to heat. If the sphere was black then the sphere would heat up by absorbing it all. Either way, all the light would get converted to heat eventually.
Black Thumb
Well-Known Member
If i only use 25-30 watts per sq foot and get the 700-1000 par per sq ft then thats my goal. Unless im understanding something wrong, running them soft is more effiecient and adding way more cobs/ boards to get the ppdf / par would be the most effecient set up not economical though which i understand.
For me when i think LEDS i think a light that uses half the energy to get better yields so if i can take 200 watts of led and produce the same amount as i would with 300 watts of another light (cmh) then i would rather double tables and spread my light rather then push hard on one table . For me my foot print is 3x3 with 315 (348 actual wattage) of CMH i can get 14-16oz per light this way 16 plants.
If led is far superior to other lights with an average 40% more effieciency my logic is when a 3x3 table is getting 16 oz thats my limit on foilage in that area anymore and im risking to much moisture per sq ft. ( Pretend i took 600 watts of led on 3x3 and got 2lbs the plants would be falling over each other and creating moisture problems)
So my Idea is take advantage of the LED energy and just double the footprint with the same amount of wattage.
BobCajun
Well-Known Member
Actually those are good yields you're getting with the cmh. You wouldn't be getting 2 lbs out of a 3x3 area anyway. There seems to be an upper limit to how many grams per sq ft you can get, regardless how much light you put in. It's usually around 45 g. Some people have reported getting a little more, You won't be getting no 100 g /sq ft though, I'm pretty sure of that. At least not if it's all coming from above. Adding some light lower down could increase the yield per sq ft, because it would be more than just the upper foot of plant that would be getting usable light. LEDs are good for that. Can't really stick a HID down under the canopy. I would keep using the cmh and just add some led with it to boost the overall light.
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no, put both in a sealed room. both will heat it up the same. simple physics...
wietefras
Well-Known Member
In fact, it's not all that cut and dry. In a sealed room the air would indeed heat up equally with 1000W of led vs 1000W of HID, but in practice we don't grow in sealed rooms. Then the difference between the extra radiated heat from the HID heating up the plants becomes apparent and you will need to run the exhaust fan a bit harder with HID. With LED, the heat is mostly convection which simply rises up to the exhaust and gets sucked out.
With LED you can easily have the temp at plant height equal to the temperature of the intake. With HPS that's not really possible. It will always be a few degrees hotter around the plants than the intake temperature.
With LED you can easily have the temp at plant height equal to the temperature of the intake. With HPS that's not really possible. It will always be a few degrees hotter around the plants than the intake temperature.