LED HPS comparison.

[jimihendrix1]

Whatever. All I know is Ive used the Solacure, and they made the weed more potent. Not saying people cant be bought and paid for, but the Solacure has been used in several different University experiments.
Theyve also been making bulbs since 1985. Not just for weed but wood curing, and show pigs.

And unless theyre lying, are the only bulb that goes down to 280nm, and the bulbs strongest range is 280nm-315nm, which have the strongest effect on weed.

These bulbs can also be run at up to 80w. We run ours on 54w. They are a 32w rated bulb, but can be run from 25w to 80w.
120w as they are overbuilt. Id say some tested the bulb at 25w-32w.

Solacure also makes a much more powerful bulb, teh SG-1, and it goes down to 290nm, but it takes a 100w Ballast to run it, and is stated it puts out more UVA/B that other 160w bulbs.

This bulb can also be used for Wood Curing, and is much more powerful the the Flower Power bulb which is a nominal 32w bulb vs 100w.

They also make the SG1 in 6ft length. Im going to try this one out, and will also reduce the amount of time they need to run.

 

[Norml56]

Is that the chps bulb with the terrible output? Had pretty mixed reviews from growers if I remember correctly.

No, not that one. They sell a regular 315watt CMH.

 

[Norml56]

Y

I checked Nanolux, Prism, Ushio, and Growers' choice. Growers Choice is the only one that even mentions an enhanced UV spectrum, but no mention if the glass is built to allow that UV through like hortilux. I run philips and I really don't know for sure if theirs allow the UV light thru I would assume not since the bulb isn't being built for horticulture lighting .

 

[Kronicle420]

All grown under led, i grew under HPS lights for years. a few years ago i decided to try LED. Never going back to HPS, you can keep the heat and the power consumption

Pic 1 - Fastbuds girl scout cookies auto (dwc)
Pic 2 - Barneys farm blue gelato 41 (soil)
Pic 3 - London city genetics Bluchi (dwc)
Pic 4 - London city genetics Bluchi (dwc)
Pic 5 - Humboldt seed organization emdog (soil)
Pic 6 - Barneys farm gorilla zkittlez (soil)

 

[PSUAGRO.]

When going with cmh, Philips digi ballast (240v)& bulb combo (3100k) is the one to get.......15 percent higher output than the competition and lower lumen depreciation. Growers house did a test on half dozen yrs ago, Philips was easily king, not surprising, they invented the tech.

Running on 120v , a step up transformer is needed .... Knocking your efficiency (1.9 ppf/w) down. 315 w cdm elite agro bulb prefers vert setup, slight spectral shift and slight bump in depreciation (3 %) running horizontally. Ditch the reflector and you're in mid/top tier lighting territory on the cheap with grow room modification (stadium /vert style)

Led Boards, strips are inching closer to 3 ppf/w this year, @ a cost. ROI is something you have to calculate for yourself, everyone has unique circumstances.

 

[Norml56]

When going with cmh, Philips digi ballast (240v)& bulb combo (3100k) is the one to get.......15 percent higher output than the competition and lower lumen depreciation. Growers house did a test on half dozen yrs ago, Philips was easily king, not surprising, they invented the tech.

Running on 120v , a step up transformer is needed .... Knocking your efficiency (1.9 ppf/w) down. 315 w cdm elite agro bulb prefers vert setup, slight spectral shift and slight bump in depreciation (3 %) running horizontally. Ditch the reflector and you're in mid/top tier lighting territory on the cheap with grow room modification (stadium /vert style)

Led Boards, strips are inching closer to 3 ppf/w this year, @ a cost. ROI is something you have to calculate for yourself, everyone has unique circumstances.

I've been wanting to ditch my reflector and just running a vert bare bulb or a parabolic. parabolic reflectors are expensive tho.

 

[end_of_the_tunnel]

View attachment 4559078
View attachment 4559079View attachment 4559080View attachment 4559081View attachment 4559083View attachment 4559085

All grown under led, i grew under HPS lights for years. a few years ago i decided to try LED. Never going back to HPS, you can keep the heat and the power consumption

Pic 1 - Fastbuds girl scout cookies auto (dwc)
Pic 2 - Barneys farm blue gelato 41 (soil)
Pic 3 - London city genetics Bluchi (dwc)
Pic 4 - London city genetics Bluchi (dwc)
Pic 5 - Humboldt seed organization emdog (soil)
Pic 6 - Barneys farm gorilla zkittlez (soil)

Stunning pics. Are you finding yourself leaning in favour of dwc or soil? Seasonal choice?

 

[Rocket Soul]

When going with cmh, Philips digi ballast (240v)& bulb combo (3100k) is the one to get.......15 percent higher output than the competition and lower lumen depreciation. Growers house did a test on half dozen yrs ago, Philips was easily king, not surprising, they invented the tech.

Running on 120v , a step up transformer is needed .... Knocking your efficiency (1.9 ppf/w) down. 315 w cdm elite agro bulb prefers vert setup, slight spectral shift and slight bump in depreciation (3 %) running horizontally. Ditch the reflector and you're in mid/top tier lighting territory on the cheap with grow room modification (stadium /vert style)

Led Boards, strips are inching closer to 3 ppf/w this year, @ a cost. ROI is something you have to calculate for yourself, everyone has unique circumstances.

CMH + led FTW.
Also, cmh efficiency in ppf looks worse than its actual efficiency, loads of stuff happening in the low nm region where every photon carries much more energy than in the 660 range which is where you get ppf up to 3.

 

[christopher jordan]

De hps has more plant useable light than any other fixture on the market afaik In a 5x5 space. Uv and ir have been proven to increase potency up to 20%. I don’t care what any of you bro sciencers think about your lights. Real facts and data are what I’m interested in and I have yet to see a single all white led panel do what a single 1k de hps or cmh bulb can. I run all These lighting types. I tested all of hlgs stuff in prototype. I actually have tried and tested all These, I don’t just go by what I read here. And I’m not talking about watt increasing efficiency because I don’t care about that. I want more light in my space and more weed that the most potent it can be. Maybe that’s where the difference lies. Most just care about what their plants look like. And white leds are a significant amount easier to keep plants healthy under than hids. I think if most guys could keep their plants healthy they’d understand generally light isn’t the limiting factor, but things like uv can change potency A LOT in weed, regardless of how pretty you grow it. Genetics are genetics.

Dr Bugbee says light is the biggest limiting factor in growing.

 

[PSUAGRO.]

CMH + led FTW.
Also, cmh efficiency in ppf looks worse than its actual efficiency, loads of stuff happening in the low nm region where every photon carries much more energy than in the 660 range which is where you get ppf up to 3.

Their is also the heat spike that Philips conveniently omitted from the spd

It's been a long time since I used cmh (330w/210w all-start pulse, probe), they did produce some very nice flowers.

Cxb cobs did better in the #s for me, quality could be a different matter? don't remember honestly.

 

[downhill21]

Dr Bugbee says light is the biggest limiting factor in growing.

I like Dr. Bugbee, his university level studies, his NASA funding, etc.

 

[Bukvičák]

These shots are from my last grow about 4 weeks before harvestView attachment 4521205

Fasciated bud

 

[cowboylogic]

Electrical cost of running HPS vs LED aside. It's hard to beat HPS w/supplemental UV.

 

[farmingfisherman]

View attachment 4558879View attachment 4558880View attachment 4558883
View attachment 4558879

Nearly time for Harvest #550w LED - STELTHY View attachment 4558886

Looks like a variety of Blueberry we just picked! Beautiful stuff!

 

[farmingfisherman]

CMH + led FTW.
Also, cmh efficiency in ppf looks worse than its actual efficiency, loads of stuff happening in the low nm region where every photon carries much more energy than in the 660 range which is where you get ppf up to 3.

First grow for me using that combo and couldn't really for a first time indoor newbie of been happier. Could it of been better? Sure, but I'll take what I grew any day of the week..

 

[Bukvičák]

Electrical cost of running HPS vs LED aside. It's hard to beat HPS w/supplemental UV.

Which supl UV do U use or reccomend?

 

[cowboylogic]

Which supl UV do U use or reccomend?

Reptile fluorescents are affordable and widely available. They come in various lengths and configurations to fit most needs. Here is an example:

Reptile Terrarium UV Lights: Best Brands & Prices (Free Shipping) | Chewy

Shop Chewy for low prices and the best Reptile Ultraviolet Light! We carry a large selection and the top brands like Zoo Med, Exo Terra, and more. Find everything you need in one place. FREE shipping on orders $49+ and the BEST customer service!

www.chewy.com

 

[Bukvičák]

Dr Bugbee says light is the biggest limiting factor in growing.

Only untill 1000 PPFD! Than you need suplemental CO2 to get full advantage of more efficient light. You can go till 2000 but than your setup must be very PRO otherwise its waste...

 

[Bukvičák]

Reptile fluorescents are affordable and widely available. They come in various lengths and configurations to fit most needs. Here is an example:

Reptile Terrarium UV Lights: Best Brands & Prices (Free Shipping) | Chewy

Shop Chewy for low prices and the best Reptile Ultraviolet Light! We carry a large selection and the top brands like Zoo Med, Exo Terra, and more. Find everything you need in one place. FREE shipping on orders $49+ and the BEST customer service!

www.chewy.com

13W so how much you need in 4x4 with 600W to take advantage of it and how long turned on? I have heard 2hours before dark and also heard its too much that 15mins in enough...?

 

[cowboylogic]

Only untill 1000 PPFD! Than you need suplemental CO2 to get full advantage of more efficient light. You can go till 2000 but than your setup must be very PRO otherwise its waste...

Yep, there is a point you go over saturate your plants with light.