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Thread: Stevehman's LED Buyer's Guide

  1. #121
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    Re: Stevehman's LED buyer's guide

    Ok. great. I figure this first grow is all a learning experience anyway. Hoping the 2 get me by until next time. I had planned on trying to add lights for the 2nd grow. I agree, I'd rather have PLENTY, then just enough. sort of like my life philosophy... "Go Big, or Go Home!!"
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  2. #122
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    Re: Stevehman's LED buyer's guide

    I only looked for 10 secs at that link, but it doesnt appear they are grow lights in the 1st place.

    My temps in tent can hit 91 with my 600w led IF tent is entirely closed up and only the exhaust fan, room tent is in is closed up, household AC doesnt kick on.

    But generally speaking it's easy to keep area 81-84 degrees.

    Lights off temps drop 10 degrees commonly in the 71-75 area, in the nevada desert, 20 yr old home, no ac on, this time of year.

  3. #123
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by Bassman59 View Post
    I only looked for 10 secs at that link, but it doesnt appear they are grow lights in the 1st place.
    <COUGH>Spammer<COUGH>
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  4. #124
    420 Member Magic beans's Avatar
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by TorturedSoul View Post
    <COUGH>Spammer<COUGH>
    No, this cannot be!!

    I take posts like that as a direct insult to our intelligence. How much time and effort us growers have put into testing and trying these lights and a spammer comes in trying to sell us flood lights. For real? And even worse: this isnt the first time. You might as well go try and sell an oxygen tank to a fish.
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  5. #125
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    Re: Stevehman's LED buyer's guide

    Hey 420 mag, long time lurker, new member, first post.
    been reading this forum for years, and steveHman, other members, and the internet in general has gotten me interested in LED's

    Of course before i make an expensive purchase, i want to know my shit lol.
    I want to say SteveHman ive been following your LED grows and i think you are doing great work and a large part in the LED revolution

    now a little about me,

    my setups are 1000W switchable digital ballasts ontop of 4x4 flood trays on castors.
    each flood tray has 9 5gal buckets with hydroton. and small holes drilled in the bottom.
    running a top feed recycling drip system controlled by a timer.
    air cooled hoods
    and a scrog screen over top thats about 4.5' x 4.5'

    I know mmj is light greedy, and needs more light than say.. lettuce or other veggies which seems like what the lights stevehman uses are for(their website says the extreme flower 360 core coverage is 4x4)

    is this true? will the extreme flower 360w produce results similar to my 1000W over an area of 4x4?

    and when you compare the watts/sq ft of the core covereage of their different lights, the larger lights have WAYY higher watts/sq ft than the smaller ones of core coverage. so would filling my 4x4 space with 4 smaller lights really be as effecient as one larger one? the core covereage is the same, but the total watts is way less?

    im a confused old man
    and i thought this might be a good place to start, thanks steveHman and all 420 members, i cant wait to hear your wisdom!

  6. #126
    420 Member SteveHman's Avatar
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by ledbudz View Post
    Hey 420 mag, long time lurker, new member, first post.
    been reading this forum for years, and steveHman, other members, and the internet in general has gotten me interested in LED's

    Of course before i make an expensive purchase, i want to know my shit lol.
    I want to say SteveHman ive been following your LED grows and i think you are doing great work and a large part in the LED revolution

    now a little about me,

    my setups are 1000W switchable digital ballasts ontop of 4x4 flood trays on castors.
    each flood tray has 9 5gal buckets with hydroton. and small holes drilled in the bottom.
    running a top feed recycling drip system controlled by a timer.
    air cooled hoods
    and a scrog screen over top thats about 4.5' x 4.5'

    I know mmj is light greedy, and needs more light than say.. lettuce or other veggies which seems like what the lights stevehman uses are for(their website says the extreme flower 360 core coverage is 4x4)

    is this true? will the extreme flower 360w produce results similar to my 1000W over an area of 4x4?

    and when you compare the watts/sq ft of the core covereage of their different lights, the larger lights have WAYY higher watts/sq ft than the smaller ones of core coverage. so would filling my 4x4 space with 4 smaller lights really be as effecient as one larger one? the core covereage is the same, but the total watts is way less?

    im a confused old man
    and i thought this might be a good place to start, thanks steveHman and all 420 members, i cant wait to hear your wisdom!
    ledbudz,
    I would go with more smaller lights in the 4x4 than one large. I will be doing a test next grow using four lights instead of the one big 800w unit. I think four 200s will produce much better results and a more even coverage. My personal opinion (based soley on my own experience) is that you want about 40~50watts of LED per square foot (not much different than the recommendations for HPS/MH), so a 180-200w in a 2x2. The better quality chips will make a huge difference.

    As far as replacing a 1,000w with a 360w light, I don't think you will have the same results. I think maybe 600-800 watts of light should be your target to replace 1,000. The big advantages are reduced heat and power consumption.

    The 360 could cover a 4x4 table, but I would go with at least a pair of them (or the four 200s). I know they're not cheap, but if you're paying almost $.25 a kwh like we do in San Diego it the ROI is pretty quick.

  7. #127
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    Re: Stevehman's LED buyer's guide

    just thinkin' out loud here... what about 2 DS200's on a light mover over the 4x4 tables?
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    My first grow v1.2 (Aero, AdvancedLED)

    My first grow v1.5 (Soil, Big Bud#1, AdvancedLED)

    My first grow v1.7 (Flood table, Advanced LED, various seeds)

    My wife's idea for a DIY vertical hydro system

  8. #128
    420 Member SteveHman's Avatar
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by ratatattooey View Post
    just thinkin' out loud here... what about 2 DS200's on a light mover over the 4x4 tables?
    You could do that as well, have them move about 12 inches back and forth. I have a mover I've used in the past and like using it because it spreads the spectrum out more evenly and the leaves get coverage from several angles that way.
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  9. #129
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    Re: Stevehman's LED buyer's guide

    thanks for the quick reply, and i agree multiple 200's would be best for me.

    lets say got 4 ds200's(92W actual draw each), and used them to cover a 4x5 area(20 sq ft)
    thats a pathetic 18.4 w/f

    but the ds 800(710 actual draw) has a core coverage of 3.5 x 4.5 (15.75) = a much more impressive 45 watts/foot

    thats what i dont understand, am i just outta luck that they dont make a light tailored to my grow dimensions? the spots considered as "core coverage" have more watts/foot on the higher powered lights?

    i understand you are not an LED expert, but i cannot find any other brain to pick with as much knowledge as yours lol
    i hope you dont mind

  10. #130
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by ledbudz View Post
    thanks for the quick reply, and i agree multiple 200's would be best for me.

    lets say got 4 ds200's(92W actual draw each), and used them to cover a 4x5 area(20 sq ft)
    thats a pathetic 18.4 w/f

    but the ds 800(710 actual draw) has a core coverage of 3.5 x 4.5 (15.75) = a much more impressive 45 watts/foot

    thats what i dont understand, am i just outta luck that they dont make a light tailored to my grow dimensions? the spots considered as "core coverage" have more watts/foot on the higher powered lights?

    i understand you are not an LED expert, but i cannot find any other brain to pick with as much knowledge as yours lol
    i hope you dont mind
    the 200s should draw 190~210 watts, my 800 draws 794 watts. The actual draw varies depending on how much they are driving the chips. They are trying to balance out power and longer life. If they drive a 3w chip at 3w it will b every bright, but last a fraction of the time if they drive it at 2.4w.

    You may have been looking at the draw for the 100 w, it is in the 92 range.

    I have the 800 in a 4x4 tent and it covers nicely, but I think that four 200s would be much better coverage due to the 3rd off effect. The space between the lights where each light drops off to about 50% effective. If you have two lights covering that space it is like having a 3rd light in the space. With four of them you would in effect have five 3rd off lights. That is what my next grow is going to be demonstrating/testing.

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    Re: Stevehman's LED buyer's guide

    yes that was my mistake, i was looking at the specs for the 100 not the 200, so now that were on the same page, would 4 ds100's be adequate for a 4x4 or a 5x4? now that seems a little skimpy, but is still within their "core coverage" claims

  12. #132
    420 Member SteveHman's Avatar
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    Re: Stevehman's LED buyer's guide

    I think that in a 4x4-5x5 space that four 200s is the ticket. Here's a quick graphic I put together to show the 3rd off effect:


    Now if you have four of them in there, you can get them a little closer to the edges and get an even coverage with very little wasted side light. That is the downfall of all lights and LEDs are no different. The side light that is reflected back off the walls loses so much that it isn't really effective, if you can get that side light to double up (and in the center you'll have it X's 4) you will maximize the total output of the lights.

    My recommendation for any type of grow is to go with multiple smaller lights than with a single larger unit. The other advantage with the DS lights is, one cord. Daisy chain them together and you have a single cord to run to your timer.

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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by ledbudz View Post
    yes that was my mistake, i was looking at the specs for the 100 not the 200, so now that were on the same page, would 4 ds100's be adequate for a 4x4 or a 5x4? now that seems a little skimpy, but is still within their "core coverage" claims
    I'm interested to hear what SteveHman has to say about this. But..... I have one of the DS 100's and 2 of the DS200's. The 100 came in a few days before the 200's. When I plugged in the 100.. I was amazed at how bright it was. But... if you want to use car engine terminology then I'd say the 200's have more than double the "torque" of the 100's.

    So.. you ask if 4 of the DS100's would be adequate.. I'd say "yeah..." they'll get you down the track, but you ain't gonna set any land speed records.

    What I'm really curious about is the difference between 4 of the ds200's and 2 of the ds 400's (I think the 4 DS200's wins that battle as well??)

  14. #134
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    Re: Stevehman's LED buyer's guide

    Quote Originally Posted by ratatattooey View Post
    I'm interested to hear what SteveHman has to say about this. But..... I have one of the DS 100's and 2 of the DS200's. The 100 came in a few days before the 200's. When I plugged in the 100.. I was amazed at how bright it was. But... if you want to use car engine terminology then I'd say the 200's have more than double the "torque" of the 100's.

    So.. you ask if 4 of the DS100's would be adequate.. I'd say "yeah..." they'll get you down the track, but you ain't gonna set any land speed records.

    What I'm really curious about is the difference between 4 of the ds200's and 2 of the ds 400's (I think the 4 DS200's wins that battle as well??)
    Agreed, that is why for my next grow I am using four smaller lights instead of two larger ones. My goal next grow is to get the maximum yield possible with an LED grow. I am shooting for the 1gpw target and think going with four smaller lights will get the job done. It is really hard to comprehend the power of these lights until you look into one (don't look too long, it hurts). In fact I seriously recommend wearing some uv protective sunglasses if you're going to be working in the grow for an extended period of time--like more than a minute!

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    Re: Stevehman's LED buyer's guide

    Disclaimer: on 1st grow, using 600W Pro-Bloom LED Grow Light | Grow Stealth LED | 3W LED Grow Lights

    I have a 4x4 tent as well. I am currently using the GS600 pro-bloom on 7 plants in RDWC in two tubs. My thought is to expand to 4 tubs in flower, 3 plants each in this tent. To do so I would buy a 2nd 600w from GS and as Stevehman mentions would also have the "3rd off" effect.

    Now if I had not already purchased the 600w, AND was going for a larger grow like I mention above, AND had the spare $$ I would seriously consider 4 x 300w GS pro-bloom lights: 250W Pro-Bloom LED Grow Light | Grow Stealth LED | 3W LED Grow Lights

    But I also believe, based on using the 600w thus far, that two of them would be an excellent choice. One will cover the tent very well, but two would give really good side penetration and excellent reflection off walls.
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