LED Thread regarding stalk weight difference between LED & HPS

[chiqifella]

Sounds like grower error

Shave them legs, let the LEDs do the rest

Really think so? side by sides all day man, in tents same controls except lights.
I own brixand par light meters, have access to a testing lab....no error here. The hid grows in the next tents over are stellar
in ever aspect. nope, not the led's. The Dutch dont waste no time on led's

 

[sparkygeek]

@chiqifella I was only considering the mass of the flowers, which, fortunately, isn't subjective. As far as the other subjective qualities... I've never had an LED improve my cure! (Which I assign more responsibility for the other attributes.) Don't let the trolls get to you... You speak the truth!

 

[LEDandCoffee]

@chiqifella I was only considering the mass of the flowers, which, fortunately, isn't subjective. As far as the other subjective qualities... I've never had an LED improve my cure! (Which I assign more responsibility for the other attributes.) Don't let the trolls get to you... You speak the truth!

Not a troll. I have both SMD's and COBs in my 4x4 pushing 730 total watts. I think it may require more defoliage early in flower with LED's, but done right they can yield just as high.

 

[LEDandCoffee]

And what on earth did you expect LED to do for curing..?

 

[Lordhooha]

@chiqfella I agree with your assessment on penetration of LED light... Every LED I've tried had the same problem... Many people I've talked to are impressed with their LED grows until they actually use an HPS... Every comparison between LED flowers and HPS flowers I've seen, The HPS flowers are significantly beefier. Obviously LEDs will improve... I'll probably hold off on buying another until I actually see results comparable to HPS... I believe in the conservation of energy, LEDs are bound by the same law of physics... Who knows, maybe one of the trolls will stumble on a product that defies these laws...

I switched from hid lights to led. Not all cobs are created equal. Hell not all cobs from the same manufacture is equal. Quantum boards and strips have come a long way. I use them exclusively anymore and come out nice. If you notice most guys and gals here that build will tell you to get Cree, citizen, very, bridgelux those are the good one out there.

 

[SunPlix CMH]

I've never tried CMH but when I researched it I found only one vendor (Phillips) for the bulb and it was outrageously expensive... While Phillips makes very good products, my experience with them is when they have you over a barrel they give it to you... Unless a second vendor has entered the space I have no interest in CMH for this reason... No matter how good, I shy away from single vendor solutions in most cases...

A lot of companies makes CMH bulb.

 

[sparkygeek]

COBs are better than discrete LEDs but still suffer from the same limitations... (Blue wavelength cannot travel as far as red/white.) While I'm sure some manufacturers are better at design and manufacturing, limits related to physics apply to all LED manufacturers. I'm sure the boards and strips have come a long way... I have not seen any proof that they are comparable to HPS yet... I'm sure they are good enough for many people, just not for me yet. Trust me, I would like to save money on electricity but if I'm going to cut my bud yield by that much, I'll just use less HPS light.

 

[Lordhooha]

COBs are better than discrete LEDs but still suffer from the same limitations... (Blue wavelength cannot travel as far as red/white.) While I'm sure some manufacturers are better at design and manufacturing, limits related to physics apply to all LED manufacturers. I'm sure the boards and strips have come a long way... I have not seen any proof that they are comparable to HPS yet... I'm sure they are good enough for many people, just not for me yet. Trust me, I would like to save money on electricity but if I'm going to cut my bud yield by that much, I'll just use less HPS light.

See I’m not even worried about energy cost I had my house built with solar with my grow rooms in mind. The leds I use penetrate just fine. I’ve always removed lower branches regardless of lights used. I’ll be testing the hlg 600h qb lights which are supposed to produce ppfd number of 1400+ where std SE hps lights hit 1200ish. The led is only pulling 600ish Watts so we’ll see how it goes.

 

[sparkygeek]

A lot of companies makes CMH bulb.

When I researched it only Phillips made the bulb... What other manufacturers are manufacturing the CMH bulb now? The picture in the advertisement you posted to this thread uses the Phillips CMH bulb... The Phillips CMH bulb has come down alot in price but still seems to be more than double the price of an HPS with equivalent wattage.

 

[sparkygeek]

Not a troll. I have both SMD's and COBs in my 4x4 pushing 730 total watts. I think it may require more defoliage early in flower with LED's, but done right they can yield just as high.

You have to remove leaves early in flower with your LED? That's interesting because every LED grow I've seen has the same problem where the plants put up more foliage to compensate for the lack of needed light... LEDs certainly have their place... I've just had significantly higher bud yields with HPS...

 

[sparkygeek]

See I’m not even worried about energy cost I had my house built with solar with my grow rooms in mind. The leds I use penetrate just fine. I’ve always removed lower branches regardless of lights used. I’ll be testing the hlg 600h qb lights which are supposed to produce ppfd number of 1400+ where std SE hps lights hit 1200ish. The led is only pulling 600ish Watts so we’ll see how it goes.

I suspect your grow room with passive solar might do fine with LEDs... The passive solar will help compensate for the missing/weak wavelengths. I don't have passive solar in my grow room so all light available to the plant has to be generated... That's why I need lights that generate as much light in the desired spectrums as possible... ruling out the LEDs right now...

 

[Lordhooha]

I suspect your grow room with passive solar might do fine with LEDs... The passive solar will help compensate for the missing/weak wavelengths. I don't have passive solar in my grow room so all light available to the plant has to be generated... That's why I need lights that generate as much light in the desired spectrums as possible... ruling out the LEDs right now...

You misunderstood I don’t have solar light my house is ran by solar and I supplement (which I’ve never needed) with the power coming in from the power company.

 

[Lordhooha]

Thus why I don’t worry with energy. I built this house to to run my geothermal, and 6000 Watts of grow lights plus the other shit running in here.

 

[NanoGadget]

Lack of needed light? As stated above, an HLG 600 QB puts out higher ppfd than a se 1000w hps. Where is the lack of light?

 

[LEDandCoffee]

You have to remove leaves early in flower with your LED? That's interesting because every LED grow I've seen has the same problem where the plants put up more foliage to compensate for the lack of needed light... LEDs certainly have their place... I've just had significantly higher bud yields with HPS...

So, you've compared actual watts of LED to actual watts of HPS side by side? None of that "equivalent" bullshit.

What type of LED's were these?

 

[Lordhooha]

The thing I did with the lights I built was incorporate cri’s from 70 all the way to 90 crib that way I cover the spectrum evenly. Though my lights are dated now but that’s why I’m starting to swap them out for quantum boards and I ordered some strips recently to build another.

 

[sparkygeek]

Thus why I don’t worry with energy. I built this house to to run my geothermal, and 6000 Watts of grow lights plus the other shit running in here.

That is different... You are running 6000 watts of LED?

If you and the trolls that seem to be jumping on my posts want to have a serious engineering discussion about lighting and yields I am all for that... From what I've seen so far, that isn't the case. I've been so interested in the topic I've bought three generations of LEDs and run them in flower. They are inferior to any HPS I've tried. If better specs made better yields everyone would be using LEDs. Specifications matter less than results... but, I guess if you only have specifications... Best of luck!

 

[Lordhooha]

That is different... You are running 6000 watts of LED?

If you and the trolls that seem to be jumping on my posts want to have a serious engineering discussion about lighting and yields I am all for that... From what I've seen so far, that isn't the case. I've been so interested in the topic I've bought three generations of LEDs and run them in flower. They are inferior to any HPS I've tried. If better specs made better yields everyone would be using LEDs. Specifications matter less than results... but, I guess if you only have specifications... Best of luck!

I wasn’t trolling you. However I was giving you basic numbers. Like I said I’ll be testing the claims and no I’m not running 6000 Watts at the moment I have one room shutdown and converting one to a shroomery lol. The current room is running maybe 2000 real watts atm. I’ve had equal results using my lights versus my old hid’s just using a bit less power and a lot less heat.

Are you an actual engineer? Or a bro science engineer? I only hold a bachelors degree in computer science dealing in network infrastructure and one in business. So I’m no lighting expert but I can read and run my own test using the same equipment.

 

[sparkygeek]

I wasn’t trolling you. However I was giving you basic numbers. Like I said I’ll be testing the claims and no I’m not running 6000 Watts at the moment I have one room shutdown and converting one to a shroomery lol. The current room is running maybe 2000 real watts atm. I’ve had equal results using my lights versus my old hid’s just using a bit less power and a lot less heat.

Are you an actual engineer? Or a bro science engineer? I only hold a bachelors degree in computer science dealing in network infrastructure and one in business. So I’m no lighting expert but I can read and run my own test using the same equipment.

Actual Engineer...

 

[Lordhooha]

Actual Engineer...

Had to ask. Again wasn’t trolling you simply giving my input on the matter the problem is this subject is just like flushing it can go on and on.