LED lightning help

[Michal.dee]

Hello guys, I have been previously using industrial LED lights which are about 60w each (60x6=360w)
Does anyone if they are any good/worth adding to my tent again?

Thanks

 

[coreywebster]

The ones in the pic?
Might not be the most efficient but they will grow.

Do you have any spec on them? Manufacturer or any info on drivers or Diodes?

 

[Michal.dee]

The ones in the pic?
Might not be the most efficient but they will grow.

Do you have any spec on them? Manufacturer or any info on drivers or Diodes?

Yeah, there’s 3 in photo and I got 6 of them.
Unfortunately I don’t. Just know the diodes have these “lenses” which magnify the light output ? Not too sure my self.
I’ll try find out more and upload better pics of lights

 

[coreywebster]

Yeah, there’s 3 in photo and I got 6 of them.
Unfortunately I don’t. Just know the diodes have these “lenses” which magnify the light output ? Not too sure my self.
I’ll try find out more and upload better pics of lights

Cool, yeah post more pics especially any details on labels ect if there are any.

Not knowing anything about them I would aim for 50w per square foot.

 

[Michal.dee]

Cool, yeah post more pics especially any details on labels ect if there are any.

Here’s few photos of them, they need a clean lol. They are very very bright. Hope this helps.

 

[coreywebster]

Well they used meanwell drivers which are great, those ones are discontinued but still offer 91% efficiency.
But still that's a good sign, they wouldn't use quality drivers along side the cheapest diodes, however LEDs have come along way in the last few years so the chips are probably nothing amazing.
They will still grow weed though, guessing were looking at something 4k or 5k in spectrum, at least they appear to have a cool white on my laptop.

Whats the plan? Supplemental lighting or main source of light?

I wondered if it would be worth while hacking them and swapping out the diodes for something more efficient but im not 100% what the best option would be. Plus you never asked about that either .

@Randomblame what do you make of these fixtures? Any thoughts?

 

[Michal.dee]

It’ll be extra light to go with my 2x450w viparspectras which pull about 400w together. Currently used for my 5 ladies in flower in 1mx1.2m space.
However All of the lights will be covering 2mx1.2mx2m

 

[Budzbuddha]

I say if the plants are responding ... use them .

 

[Michal.dee]

I say if the plants are responding ... use them .

Think I will, it always gives that extra light.

 

[Randomblame]

Well they used meanwell drivers which are great, those ones are discontinued but still offer 91% efficiency.
But still that's a good sign, they wouldn't use quality drivers along side the cheapest diodes, however LEDs have come along way in the last few years so the chips are probably nothing amazing.
They will still grow weed though, guessing were looking at something 4k or 5k in spectrum, at least they appear to have a cool white on my laptop.

Whats the plan? Supplemental lighting or main source of light?

I wondered if it would be worth while hacking them and swapping out the diodes for something more efficient but im not 100% what the best option would be. Plus you never asked about that either .

@Randomblame what do you make of these fixtures? Any thoughts?

Side or corner lights! I woiuld probably remove the lenses unless you want to bridge a larger distance. Even the best PMMA means only ~95% transmission rate or 5% light loss! Usage only makes sense when you're forced to bridge a higher distance. Focussing the light can for instance help to avoid light losses on the walls.
One could reuse heat sinks and driver and just change the LED's. 8 XPG3's mixed with 4 hyper-red Osram Square would deliver a nice all-in-one Spectrum and could handle up to 1A.
You could also use red, deep- and far-red diodes to create a something to push the emerson effect.

 

[Michal.dee]

Side or corner lights! I woiuld probably remove the lenses unless you want to bridge a larger distance. Even the best PMMA means only ~95% transmission rate or 5% light loss! Usage only makes sense when you're forced to bridge a higher distance. Focussing the light can for instance help to avoid light losses on the walls.
One could reuse heat sinks and driver and just change the LED's. 8 XPG3's mixed with 4 hyper-red Osram Square would deliver a nice all-in-one Spectrum and could handle up to 1A.
You could also use red, deep- and far-red diodes to create a something to push the emerson effect.

I actually thought about maybe using them as side or corner lights. I’ll definitley look into changing the LED’s. Very interesting. That’s for the response !

 

[Randomblame]

I actually thought about maybe using them as side or corner lights. I’ll definitley look into changing the LED’s. Very interesting. That’s for the response !

Yeah, heat sinks are pretty expensive and this ones are clearly made for passive cooling(wider fin spacing).
Seems they are ~8"/20cm long!?
If so, you could connect each 3 heat sinks lengthwise to get two 24"/60cm "bars". Reused this way you could use them for 2 Samsung H-Influx L09 strips(same LM301b like QBv2) for instance and if there is enough room you could add a red/deep-red string between the 2 strips. Each bar could run with ~100-150w depending on drive current and how much deep-red you add but efficiency would be awesome. +2,5μMol/J(W) at system level is pretty easy to get with such a combination.
How wide is the mounting area?

 

[Michal.dee]

Yeah, heat sinks are pretty expensive and this ones are clearly made for passive cooling(wider fin spacing).
Seems they are ~8"/20cm long!?
If so, you could connect each 3 heat sinks lengthwise to get two 24"/60cm "bars". Reused this way you could use them for 2 Samsung H-Influx L09 strips(same LM301b like QBv2) for instance and if there is enough room you could add a red/deep-red string between the 2 strips. Each bar could run with ~100-150w depending on drive current and how much deep-red you add but efficiency would be awesome. +2,5μMol/J(W) at system level is pretty easy to get with such a combination.
How wide is the mounting area?

I’m not exactly sure on the length of the heat sinks but I’ll check when I get home soon. So I assume you mean just taking out the current LEDs and replacing them with the Samsung h-influx strips and possibly red string ? I’m using a meanwell to power it all up which runs at “+36v” if I’m not mistaken.
The l&w of tent is about 2m x 1.2m if I’m not mistaken so Space shouldn’t be a problem.

 

[Randomblame]

I’m not exactly sure on the length of the heat sinks but I’ll check when I get home soon. So I assume you mean just taking out the current LEDs and replacing them with the Samsung h-influx strips and possibly red string ? I’m using a meanwell to power it all up which runs at “+36v” if I’m not mistaken.
The l&w of tent is about 2m x 1.2m if I’m not mistaken so Space shouldn’t be a problem.

Yepp, that would end up with top notch efficiency. But your area is 2,4m² or ~26ft² which means you need at least 800-900w. Rule of thumb with latest generation top bin LED's is around 30-35w per squarefeet to get ~800-900μMol/s/m². You would need 6 such bars each made of 3 heatsinks so 18pcs in total. If you can get them for free, okay! If not its maybe better to build a frame and just use alu U-channels.