Original StinkyG
Well-Known Member
Original poster ! Ha
Old skool here, need help finding right information on led ! Please help !
- Thread starter Original StinkyG
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Original StinkyG
Well-Known Member
Post above yours, sorry bud
Original StinkyG
Well-Known Member
it is and it isnt, not hot spots though like with single source hid, ambient temps yeah still about the same, also something's are more efficient and don't waste energy as heat !
Original StinkyG
Well-Known Member
how long you veg for to get 8oz per lady, and how you grow ? Soil or hydro ?
grotbags
Well-Known Member
shits a strong word... to budman they still produce the goods and hes happy so they aint shit to him but if a mate came back from a growshop today in 2021with a budmaster id punch him in the throat for buying shit...
but seriously its all down to efficacy and diode spread today, more light per watt and spreading that light over the canopy.
them budmasters are just old tech now.
budman111
Well-Known Member
424 NFT scrog/ veg for 6-7 weeks and get two plants in a 424 tank size with budmaster GOD 8 modules
Original StinkyG
Well-Known Member
Just had a mooch at them ! Thanks for the link, they use Samsung and osram reds but Samsung diodes are 561c I think ? Can anyone answer my question about bin diodes, are top bin 561c better than lesser bin lm301h ????This is the stuff I've been looking at lately. Interesting info and I like the old school metal hoods.
GROW 300 LED Grow Light | Grow Light Science
The GROW 300 is a full-cycle lighting solution for commercial or residential cannabis cultivation. Best plant-loving light at lowest cost.www.growlightscience.com
grotbags
Well-Known Member
short answer no. technically there no bins for the lm301h, but there is for the lm301b which is the identical diode. the best bin lm301b's are lm301h's.
grotbags
Well-Known Member
this is where it can start to get confusing because you can still have a more efficiant led light based on a lm561c diode as opposed to a light based on a 301b/h you just have to use more 561c and run them softer, and because 561c are really cheap compered to 301b/h this is very possible.
Hugo Phurst
Well-Known Member
That is an inaccurate statement. 600w of heat is 600w of heat, a 600w lamp does not produce 600w of heat. My 600w HPS produces a whole lot more heat than 600w of led. A fan cooled unit uses power to move heat away from the lamp, by using a fan you not only use more power you produce more heat, so yes a fanless unit produces less heat.
Nope, considerable less waste heat with led, that's a huge part of their efficiency
budman111
Well-Known Member
Sorry, forgot to add that I foliar Triacontanol @ 1ppm weekly until week 2 flower and occasionally cytokinen in veg
nogod_
Well-Known Member
It has been explained on this sub forum dozens of times but here's a quick refresher....
Both 600w luminaires put out 600w of heat. It's just a matter of when those watts turn into heat that varies. In an LED tent or room all of the light you produce will convert to heat once it hits enough surfaces. So yes, 600w of LED will eventually produce 600w of heat.
Your 600w HPS doesn't produce more heat than 600w of LED, that is an impossibility of physics. It produces more heat relative to the amount of useable light it produces. But in a sealed room, both 600w sources will heat up the space exactly the same.
Fans aren't going to change how hot your room gets. They will change where your heat is concentrated which is actually a good thing. You'd rather have heat around your plants than staying in the top of your grow space shortening the life of your diodes. A small fan moving air around your space is worth the 10w penalty in my humble opinion but I am far from a efficiency zealot, I grow with 7 year old Cobs.
Both 600w luminaires put out 600w of heat. It's just a matter of when those watts turn into heat that varies. In an LED tent or room all of the light you produce will convert to heat once it hits enough surfaces. So yes, 600w of LED will eventually produce 600w of heat.
Your 600w HPS doesn't produce more heat than 600w of LED, that is an impossibility of physics. It produces more heat relative to the amount of useable light it produces. But in a sealed room, both 600w sources will heat up the space exactly the same.
Fans aren't going to change how hot your room gets. They will change where your heat is concentrated which is actually a good thing. You'd rather have heat around your plants than staying in the top of your grow space shortening the life of your diodes. A small fan moving air around your space is worth the 10w penalty in my humble opinion but I am far from a efficiency zealot, I grow with 7 year old Cobs.
Hugo Phurst
Well-Known Member
No. Both luminaries draw 600w of power. Led's turn more of that power into light.
30yr Electronics Technician/Technologist.
You mean like when my weed turns into heat as I smoke it?
nogod_
Well-Known Member
Google: transpiration
You may be an electrician but you are definitely not a botanist.
You may be an electrician but you are definitely not a botanist.
Hugo Phurst
Well-Known Member
I'm quite aware of "transpiration" and it's doesn't have a lot to do with turning light into heat.
BTW - Electronic Tech isn't an Electrician & you're no Physicist
What's your degree in anyway?
nogod_
Well-Known Member
Here you go bud:
Transpiration serves to evaporatively cool plants, as the evaporating water carries away heat energy due to its large latent heat of vaporization of 2260 kJ per litre.
Just because you are aware of something does not mean you understand it.
Transpiration serves to evaporatively cool plants, as the evaporating water carries away heat energy due to its large latent heat of vaporization of 2260 kJ per litre.
Just because you are aware of something does not mean you understand it.
Hugo Phurst
Well-Known Member
Shakes head & selects ignore
grotbags
Well-Known Member
ah the old which is hotter the chicken or the egg???
think of this, you take two boxes these boxes are made of special material that is 100% insulated ie no heat can escape and 100% reflective so no light can escape. in one box we put a 600w heater that is 100% efficient ie all the watts get turned to heat, then in box two we put a 600w led that is 100% efficient ie every watt is turned into photons.
just before we close the special boxes we put a temp probe in each one and seal them up, we turn on both the heater and the light for 1 hour and then turn them off and wait for 10 hours.
we now check the temp probes in each box, are they the same or different?.
think of this, you take two boxes these boxes are made of special material that is 100% insulated ie no heat can escape and 100% reflective so no light can escape. in one box we put a 600w heater that is 100% efficient ie all the watts get turned to heat, then in box two we put a 600w led that is 100% efficient ie every watt is turned into photons.
just before we close the special boxes we put a temp probe in each one and seal them up, we turn on both the heater and the light for 1 hour and then turn them off and wait for 10 hours.
we now check the temp probes in each box, are they the same or different?.
Hugo Phurst
Well-Known Member
I see where you're going.....but (IMO )in order for your scenario to be applicable in this situation there would have to be identical plants in each box.
