HTG supply LED spotlight

[SmokinAce23]

Hey what's going on guys. I was browsing htgsupply and decided to take a look at their led systems. I came across this. http://www.htgsupply.com/viewproduct.asp?productID=52297
Do you guys think these would work for an entire veg and flower cycle for 2-3 plants? I haven't seen too many people using leds on this board. I thought these would be a lot better than getting a mh/hps conversion. Less heat, eliminates a fan, uses less electricity, and better priced imo. I would love to see if anyone has ever used these. These can swap out with cfls in your setup. Any input??

[gainesvillegreen]

I don't think you'll find many proponents for LED grow lights, at least not here. They generally lack the necessary output to be beneficial enough to use.

I personally stick to the K.I.S.S. principle and the belief that if it ain't broke, don't fix it. Until LEDs are proven superior to HID lighting, or even fluorescents for that matter, I wouldn't even give them a second thought.

P.S. I just read over the page you linked and nowhere do they come close to stating the output of the LEDs. For a $180 light designed and sold as a 'grow' light, the output is something that should be listed. They do say that they are '10x as efficient' so they output as much as a '400w HPS', which doesn't seem the most believable.

[NorCal Grown]

To tight of a light spectrum depending on what materials the LED's are made of. Also, why don't they give the lumen output, scary. For that much cash ($189.95) pick up a 400w Switchable HID for a little less. I really don't think LED's are going anywhere, they are not even more efficient then a CFL for Lumen output per Watt used. Low pressure sodium would be the most efficient, but not for growing. So high pressure sodium would be the next step down in a efficient light source. Maybe Sulfur plasma lights will get better/cheaper soon??

Here is some Lumen's per Watt:
Candle : ~.3 (Lm/W)
White LED's : 26-70 (Lm/W)
CFL's : 45-105 (Lm/W)
Sulfur Plasma : ~100 (Lm/W) light output VERY close to sunlight, better than any other artificial light source.
High pressure sodium lamps : 140-160 (Lm/W)
Low pressure sodium lamps : 180-200 (Lm/W)

[Opie Yutts]

Do you guys think these would work for an entire veg and flower cycle for 2-3 plants?

NO.

If you are going to waste money on LED lights to grow weed with, then you might as well buy some good ones like the UFO. There have been no successful yields as of yet using solely LED lighting. Perhaps you can be the first.

I would not consider buying a light from a manufacture who lies or declines to tell you how much light it puts out. They do both.

[dnlfacundo]

if you decide to use the leds i would recommened them for vegging because they save half the energy.

[NorCal Grown]

No, they wont. If you don't know about something, please don't post incorrect info about it. How do they use "half" the energy? If you see I posted the Lumen's per Watt of common lights, LED's do not save power per Lumen of light they emit. Also, we don't even know the light output of the LED's he's talking about. So they are saving half of what??

If I'm a little aggressive against newbies posting wrong info, it's because of my time over at the Pirate4x4 board. ;)

[pudder]

does anyone thing that some energy does get wasted in other light sources?

What I mean is this. Lets use 100% of an HID lamp. just an example not accurate information. just assuming.

HPS - these emit more then just 1 color of the spectrum. infact these emit all the colors in the spectrum that are visible by humans.

ok so say that the HPS emits:

50% - red spec
30% - blue spec
5% - green spec
5% - yellow spec
10% - white spec

ok so there are colors that are not needed for growing. main colors are blue for veg and red for flower.

so for the 20% of light that are not these colors. Isn't there some wasted energy? Say you have a 1000watt HPS. Out of all the light being emitted you are not using 20% of it.
So would this mean you are using 1000 watts of power and only getting 800 watts of usable light?

If there were HPS that emitted 60% - red and 40% blue. To me that would be more efficient.

When it comes to LED grows I have read a load on this. There are some people who choose to grow with LEDs over any other light because of some of the benefits to it.
Seeing as how you can get the colors of the spectrum that are needed and that is it they just may be more efficient. Not saying that they are but if you could afford the right system and more experimentation was compiled and the technology was tested a little more they just may be.

Time will tell when the little babies get cheaper and cheaper I am sure more people will at least experiment.

We can't rule out that they are not more efficient as of yet because we don't know what they are fully capable of. I know that they are bright as hell and certain colors can be narrowed down to ones.

Not only that but they also come in many angles. narrow ones and wider ones. The right combination may prove to be really useful. Plus the little suckers can touch the plants without harming them. I like that idea i know that.

How many people on cannabis know how an LED works? If some have questions on how they work and produce light I will be more then happy to explain.

One more thing

Some people need to think a little simpler. Rather then scientific theory. (yeah i said theory). Think more of the quality of light rather then how much can be produced. Granted these are factors that are important but. Quality of light meaning right spectrum and how it relates to everyday light emitted from the sun. What can be narrowed down to what the plants need and what they don't need?

Time will tell when the technology becomes more explainable and cheaper on everyones wallets.

As of now everyone used HPS, MH, Tobes and CFLs. What was being used 20 years ago or even longer? Technology will improve and other light sources will be avalible for use that might prove to be worth a try. With the experiments that have been done with LEDs so fa these have proven to work from start to finish but growth rate and all that stuff may be less then with conventional metheods but LEDs have proven to work.

Ok I am done. Mine hurt gotta go numb it with a visit to the bongo room.

[Cruzer101]

This may be of some help. I got it off an auction at ebay.

[SnSstealth]

Yes, LED lighting does need more experimenting and that has led me and my partner to dive in pretty heftily. We're 1 week in on a grow featureing three Procyon 100's(both links in sig.).

For those having issues with the ability of LEDs to grow pot plants need only to look at this months High Times Mag. they did three side-by-sides with a light from hid-hut called the UFO w 90 watts of power against a 400 mh, a 400 hps, and a 600 hps. the results basically showed somewhere around the 400 hps, but they stated that "there was a markedly different potencies, with the led plant producing much more resin". Uhh yeah, I can't wait to find out.

Pudder, there actually much less red & blue %'s in MOST mh and hps lights and the white is a combo. the energy reduction on just the light is "supposed" to be around 80% less. Thats not even figuring in other costs.

Lumens are a way of measuring light yes but the way it is calculated is based on the human eye not a plant leaf. Each wavelength in the spectrum is given a multiplier based on the eyes sensitivity to that color, therefore greens and yellows are given an exponentially larger number to multiply with than will reds and blues which are much darker to our eyes.

Please check our grow log with any ?'s or comments,
Doughboy
SnSstelth

[Opie Yutts]

Lumens are a way of measuring light yes but the way it is calculated is based on the human eye not a plant leaf. Each wavelength in the spectrum is given a multiplier based on the eyes sensitivity to that color, therefore greens and yellows are given an exponentially larger number to multiply with than will reds and blues which are much darker to our eyes.

To measure the light we see, measure luminous flux.
To measure the light a plant sees, measure radiant flux.

[SnSstealth]

Sooo... Which is the number used on hid grow lights?

[Opie Yutts]

Unfortunately it's lumens (luminous flux).

[pudder]

I know there were tons of people who frowned on the use of LEDs pretty much what I was saying is that people should prolly take a closer look at the LEDs rather then dis then hell outta them.

Lads of possiblilities with emm ya know. Just my opinion anyways.

[cture]

Any input??
Hello smoking ace!
LEDS will give you beautifull crops, but you have to look fo following wave bands present in the light
420nm
430nm
440nm
450nm
630nm
650nm
660nm
680nm
700nm
And if the spectrum is correct then with 100watts ficture you could grow 1 pot beautifully

[gainesvillegreen]

LEDS will give you beautifull crops...

I would really like to see evidence of this. I'm not one of the nay-sayers of LEDs, I'll just tell you that I have yet to see them proven to be effective. Have you grown a beautiful crop with LEDs?

[SnSstealth]

guys....check out my link, more pics will bw up tomorrow, but im going into week 2 using 3 procyon 100s, no white light will touch these plants till harvest