Best LED comparable to 1000W HPS

[UpstateRecGrower]

what's "relective"?

I guess it does take much fantasy to just hit (1x0.96)^n in a calculator to see where it does arrive?

You said A 0.96% Loss. Sorry that you made a mistake..

 

[BBQtoast]

You said A 0.96% Loss. Sorry that you made a mistake..

I think the umol difference gavita pointed out seems about right, 6% (I'm guessing here, too early and lazy to go back do maths).

Information that's good to know, I also looked at sphere tests and they found a similar loss.

This hits the HPS umol, now they don't have to advertise reflector umol for a bulb but they really should. It wasn't hard to work out taking the basic reflectance of materials but you need a good reflector to hit that maybe not those barn style types.

Was the sphere test 400-700par, I forget that too, add back the 6% ir we said before and we're back to 2100 as all LEDs seem to quote some ir and low blue the sphere misses.

 

[UpstateRecGrower]

I think the umol difference gavita pointed out seems about right, 6% (I'm guessing here, too early and lazy to go back do maths).

Information that's good to know, I also looked at sphere tests and they found a similar loss.

This hits the HPS umol, now they don't have to advertise reflector umol for a bulb but they really should. It wasn't hard to work out taking the basic reflectance of materials but you need a good reflector to hit that maybe not those barn style types.

Was the sphere test 400-700par, I forget that too, add back the 6% ir we said before and we're back to 2100 as all LEDs seem to quote some ir and low blue the sphere misses.

The 96% is how efficient the aluminum is at bouncing the light back, it’s not how efficient the entire working assembly is, much of the light bounces right back at the bulb, and a lot bounces a few times before coming out of the reflector.

 

[hillbill]

Having troubles understanding some “science” and mathematical logic on this thread.

 

[BBQtoast]

The 96% is how efficient the aluminum is at bouncing the light back, it’s not how efficient the entire working assembly is, much of the light bounces right back at the bulb, and a lot bounces a few times before coming out of the reflector.

96% seems right, only a portion of the light bounces on a upward plane, we would be talking top reflectors and three bounces would be a lot, one to two more common so I couldn't guess but see figures from 5 to 10%. Parabolics are more one bounce shades, can I guess that's where they pick up efficiency, they must achieve 95% and upwards.

HP's spreads more reflected light than led, it works harder has a wider beam and more photons penetrate lower due to angles of reflection.

I've read a lot of led threads where the light is a little too concentrated on the canopy, often why I think they run at less watts per foot2 and complain of intensity issues but lower buds aren't quite as developed.

We're doing led a favour, were leaving out those 360 hid grows that produce more than reflector grows. If I want to use all 2100umol I could and some do even grow more in less space. Let's not say more most are in reflectors and tents.

 

[PJ Diaz]

96% seems right, only a portion of the light bounces on a upward plane, we would be talking top reflectors and three bounces would be a lot, one to two more common so I couldn't guess but see figures from 5 to 10%. Parabolics are more one bounce shades, can I guess that's where they pick up efficiency, they must achieve 95% and upwards.

HP's spreads more reflected light than led, it works harder has a wider beam and more photons penetrate lower due to angles of reflection.

I've read a lot of led threads where the light is a little too concentrated on the canopy, often why I think they run at less watts per foot2 and complain of intensity issues but lower buds aren't quite as developed.

We're doing led a favour, were leaving out those 360 hid grows that produce more than reflector grows. If I want to use all 2100umol I could and some do even grow more in less space. Let's not say more most are in reflectors and tents.

Stop speculating. If you are going to make an argument, posit up some facts and figures. You are a lazy debater. And for fuck's sake, stop saying "HP's", it makes you look like a moron. Oh wait..

 

[BBQtoast]

Stop speculating. If you are going to make an argument, posit up some facts and figures. You are a lazy debater. And for fuck's sake, stop saying "HP's", it makes you look like a moron. Oh wait..

Wasn't making an argument, blame Google Android it won't accept HP's without changing it I've tried, I was happy with the gavita figure that seemed to be about right for reflector loss.

I am a lazy debater, I couldn't even think of any comeback or insults, some how I made you mad so I don't need one.

 

[Norml56]

I have always thought it was odd how each new HLG release was a 1k HPS replacement. Price went up but did the same thing. I bought into HLG when they first started selling DIY boards and ended up with 4 of the QB 288's in 2700k. Running them at the full for a total of 600watts did not replace my 1k HPS in a 5x5 tent. Put a 315watt CMH into the middle, and yield and quality came back but was only saving 100watts on the electric bill, and in my situation, my tent was way hotter than with the hooded 1k. I still use the QB's in my new setup as a nice supplement to fill in gaps. It is nice how easy it is to place LED boards

 

[PJ Diaz]

Wasn't making an argument, blame Google Android it won't accept HP's without changing it I've tried, I was happy with the gavita figure that seemed to be about right for reflector loss.

I am a lazy debater, I couldn't even think of any comeback or insults, some how I made you mad so I don't need one.

I'm typing this with Android speech to text right now. HPS HPS HPS. You suck at technology. I'm not mad just stating facts. Why are you even here if you're not willing to have a logical debate? HPS

 

[UpstateRecGrower]

I have always thought it was odd how each new HLG release was a 1k HPS replacement. Price went up but did the same thing. I bought into HLG when they first started selling DIY boards and ended up with 4 of the QB 288's in 2700k. Running them at the full for a total of 600watts did not replace my 1k HPS in a 5x5 tent. Put a 315watt CMH into the middle, and yield and quality came back but was only saving 100watts on the electric bill, and in my situation, my tent was way hotter than with the hooded 1k. I still use the QB's in my new setup as a nice supplement to fill in gaps. It is nice how easy it is to place LED boards

More efficient chips, added red, now they have one that replaces a 1000w DE all the others were only replacing 1000w SE.. if 600 watts of quantum boards didn’t replace a 1000w SE than you did something wrong..

 

[Norml56]

More efficient chips, added red, now they have one that replaces a 1000w DE all the others were only replacing 1000w SE.. if 600 watts of quantum boards didn’t replace a 1000w SE than you did something wrong..

I didn't change anything. That could have been the problem. I wasn't willing to lose several thousand dollars figuring it out to save a few bucks on the electric bill. I've never had to run A/C to keep my space cool with the 1k so it was really just the 400 watts of electricity. with 4 boards in a 5x5 it didn't seem to get the spread that the 1k did. Just my observation on the 2 runs I did with the boards. I pay around $40 a flowering cycle for my 1k HPS $40 to grow 2lbs is acceptable in my arena.

 

[UpstateRecGrower]

I didn't change anything. That could have been the problem. I wasn't willing to lose several thousand dollars figuring it out to save a few bucks on the electric bill. I've never had to run A/C to keep my space cool with the 1k so it was really just the 400 watts of electricity. with 4 boards in a 5x5 it didn't seem to get the spread that the 1k did. Just my observation on the 2 runs I did with the boards. I pay around $40 a flowering cycle for my 1k HPS $40 to grow 2lbs is acceptable in my arena.

Yeah I'd have to agree that the light distribution for 4 boards in a 5x5 would be pretty poor, they'd have to be up kind of high..

 

[Norml56]

Yeah I'd have to agree that the light distribution for 4 boards in a 5x5 would be pretty poor, they'd have to be up kind of high..

I needed 6 boards dimmed down to 100 watts each and then maybe I would've gotten a better result. At that point, I wasn't willing to drop more money to find out if I would get exactly the same result as the 1k HPS. I also would have needed to buy a new driver because they discontinued the 2700k boards and released the V2's.

 

[Norml56]

Having troubles understanding some “science” and mathematical logic on this thread.

Bro Science. This is about the same type of convo that was had when the Blurple LEDs were out. Once you drop so much money on something you will hold onto the thought that it has to be better. When really it is exactly the same with a few dollars in electric savings.

 

[BBQtoast]

I'm typing this with Android speech to text right now. HPS HPS HPS. You suck at technology. I'm not mad just stating facts. Why are you even here if you're not willing to have a logical debate? HPS

Start a logical debate, what have I missed?

On other news I got it to suggest HPS as an option even if it still wants HP's I can now lazily autocorrect with one button push.

I think that's the best option, I had to put HP as a shortcut to HPS to get it to at least recognize the word exists. Not an easy problem to solve first time, technical skills are here if I need them just prefer to save them for more life or death situations.

 

[PJ Diaz]

technical skills are here if I need them just prefer to save them for more life or death situations.

You might die.