For a 4x4 tent, which of these two LED lights would you use? ($500)

Green_Skunk

Green_Skunk

Well-Known Member
Optic 4 LED opticledgrowlights.

youtube watch?v=kjpRmmyYtCY

Viperspectra PAR1200 viparspectra. goods.php?id=75

Review of PAR700 (none available for PAR1200)
youtube watch?v=0Tgxrwmo3uU

These are both prices around $500. Which would you choose and why? Amy other suggestions for this price range?

Thanks for your responses. :)

Silly restrictions aren't letting me link directly :wall:

Ridiculous!
 
Seemsodd

Seemsodd

Well-Known Member
The optic 4 looks Okay, but there are definitely better options if your spending 500$
Check out cobkits, 6 of the cxm22 light engines and 2 hlg185h-48a come in under 400$ before shipping. You would be around 450 watts of efficient harder driven cobs that way.
Or you can't go wrong with quantum boards, 325 for the xl 250 watt kit, pretty sick for sure, but not sure what kind of space you using.
 
Pistil Kid

Pistil Kid

Well-Known Member
If I was you I would invest in either COBS or QB boards you could get a QB kit from Horticulture Lighting Group. for about $325 that would easily out do either of those lights. Recommended flower size is 3 x 3 but would do a very good job. If you are still considering the lights you listed you may want to look into the following. The Optic Led you can get on alibaba from Sunplus Led they are called pioneer 4 or 6 depending on if you want the 4 or 6 cob version. They are the same light as the Optic 4 or 6 but cheaper because you are buying from the manufacturer. I live in Thailand and was quoted $385 for the Optic 6 / Pioneer 6 delivered by dhl. https://www.alibaba.com/product-detail/Free-shipping-led-grow-hydroponics-panel_60642371346.html?spm=a2700.7724838.2017005.3.Rif2LW
 
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Diskokobaja

Diskokobaja

Well-Known Member
Johnny Lawrence said:
Both of those lights are overpriced garbage.

The Timber light linked in the post above mine is a much better buy.
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yeah .. kobaja isn't dumbass at the end?

If he want manufactured led contact http://www.gehl-led.com/noah-8-led-grow-light.html

company they have some noah led, cobs plus blurple combo.. Or you just order cheapest 6-8 cobs china led, take out that lumiled and put cree or citizen inside.
 
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Green_Skunk

Green_Skunk

Well-Known Member
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Strainbane

Strainbane

Member
I think 3500k/ 3000k cobs would outperform that viper easy. You could do just fine with 3500k and 3000k but that is what is cool with diy and being able to change stuff around. I would stay away from allibaba. They use cheaper low bin lights usually. Like someone said above, you could get 6 veros and a 320 or 480 dimmable meanwell with everything needed for a light for under 500. I think cobkits has light engines ready to go even. https://cobkits.com/product-category/light-engines/ just add a frame, hangers and a driver.
 
Green_Skunk

Green_Skunk

Well-Known Member
Strainbane said:
I think 3500k/ 3000k cobs would outperform that viper easy. You could do just fine with 3500k and 3000k but that is what is cool with diy and being able to change stuff around. I would stay away from allibaba. They use cheaper low bin lights usually. Like someone said above, you could get 6 veros and a 320 or 480 dimmable meanwell with everything needed for a light for under 500. I think cobkits has light engines ready to go even. https://cobkits.com/product-category/light-engines/ just add a frame, hangers and a driver.
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I have no doubt in my mind that building one of those fixtures would give me the best bang for the buck but to be completely honest I am one lazy mofo! lol

I'd happily pay for one of the preassembled units than to build it myself. That's really the long and short of it. Best thing is your advice doesn't go to waste. Someone is bound to use search terms in google and hit this thread at some point. Thanks! :wink:

OK I take it back - I just watched this

I'm impressed and it doesn't look like its that hard to put together even if you are lazy :P
 
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Pistil Kid

Pistil Kid

Well-Known Member
It is not that hard to do as you can see and the coverage you get is a lot more consistent across your grow for less $ and less power consumption. Some of the sites / companies you may want to have a look at are

Timber grow lights - they have ready made frames with the Cobs already assembled if you are still a little hesitant about your DIY skills also has kits if you want to try it yourself.

Cobkits - great source of DIY parts if you want to build your own it is not that hard especially when they tell you what parts you will need all you do is put it together. Pretty simple.

horticulture light group - Offers quantum board kits again not that hard to do as you can see via youtube only problem is availability you may need to wait until they restock.
All of these guys frequent the forum on a daily basis they give their knowledge freely and are more than willing to answer your questions and steer you in the right direction. Stay away from the burple / box leds they are overpriced / low quality.
 
Rahz

Rahz

Well-Known Member
Green_Skunk said:
The reason I liked the Viperspectra was its ability to dim and its full spectrum capabilities. Do the lights recommended above from you guys have this? The one cob fixture seems to only do 3000 or 3500?
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Either way (3000 or 3500) white light is "full spectrum". Most good cob lights dim and if you DIY you can add in a dimmer if you like.

More important than all of that is the amount of light you get per watt. I compared my T22 (200w lamp) to the spectra (418 actual watt) by replicated their par reading footprint. The 200w lamp had a higher average reading!

Since the 200w lamp is 56% efficient I guess the efficiency of the other lamp to be under 28%.

Green_Skunk said:
I found this https://www.alibaba.com/product-detail/Full-Spectrum-Grow-Bulb-Noah-8_60585655074.html

Its got full spectrum and has dimming capabilities. Is this a winner? Can't see the price but I think it should be close.
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All those cheap Chinese lamps are going to be similar. The 1200W has a power draw of 550 watts which means it's about the same as a 225-250 watt COB lamp. Makes me chuckle. The Vero29C has a max drive current of 3.42 amps which would run them at 254 watts each. Since the T22 uses 4 chips that means I could call it a 1000W lamp!

lamastare.gif
 
CobKits

CobKits

Well-Known Member
epistar diodes in the optic are garbage. no 2017 manufacturer would use them for any other reason than to make a quick buck

also check out the pattern of the light in their "review". your girls in the corners wont care that its 700 umol in the center, because they'll be in the dark. for them to recommend that for a 4'x4' area is a joke.

all these cheap ass lamps do is use (inefficient) lenses to concentrate the light from their (inefficient) diodes into a spot to try to impress you with a high par reading

this "spec" is completely baseless, useless, and dishonest

PAR:1225 umol/m2/s at center of footprint


upload_2017-7-17_23-27-59.png

ive never laid hands on one of these but i have no doubt that rahz's T22 can hang with them at half the wattage. it actually uses efficienct chips for all you know this optic lamp could be driving the hell out of 3-year old cxa2540s so jsut because it says 200w of "cobs" or 200w of "cree" means little
 
ttystikk

ttystikk

Well-Known Member
Comeasyouare420 said:
I know I'll catch hell but I personally would go with the p600 led been working great for years in my case
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It's obsolete; much better options out there now for much less money.

Many of them have been mentioned above.

RIU is actually one of the best places anywhere to educate yourself about the latest in high performance horticultural LED lighting.

The local University here in town (my Alma mater) recently built a multi million dollar horticulture Lighting lab.

What's available here blows what they're using out of the water lol
 
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