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i think lenses are good for grows where have you lots of space and want the light to only travel towards the plant. If you are growing in a small room or a crowded room make sure that your walls are covered in a highly reflective mylar like substance. But dont worry about lenses too much as the...

Awesome light Albert111!!!!! so its pulling 36 actual watts? if so then you should get about an OZ at harvest! Pop some seeds!

If you are not growing with LEDs GTFO....

also i forgot to mention.... you should drive your LEDs at like 60-70% off their capacity... this is determined by the resistor in the instractables article.... for the most part Red LEDs drop 2.2-2.5 volts.... and blues drop 3.4 volts... IR LEDs drop 2.2 the same as the reds... and UV bults...

NO NO NO NO NO... fuck man.... the amount of miss information is overwhelming.... there is absolutely nothing wrong with buying cheap chinese or korean LEDS..... you will have a slightly lower performance but the $/lumen are defiantly worth it... It is scales of magnitude more economicaly...

follow some LED grow logs and make your choice... just get something with a good warrantee...

also ozone with literally oxidze your lungs.... so i would focus on the harmfull UV light to get more trics.... no harmful air for you or any other poor soul who lives close by (being comercial people dont think of others in the housing complexes or neighbourhoods)

I wouldn't blame the LED's out right but they do have some issues with leakage or trickle currents. that being said, you grew fine with blackstar 240s before... and im pretty sure its physically impossible for a MJ strain not to flower unless it is stressed or something.... What i think... is...

switching mode transformers are DC-DC transformers..... generally there are Buck (high DC- Lower DC) Boots - (DC to higher DC) or buck boost which can do both. you can also synthesize AC from DC with a comparator wave and a triangular wave form.... but thats a little above the stoner educate...

your wrong... and your kinda a dic.... spectrum is a matter of choice and opinion... ive seen amazing buds form only white LEDs, equaly ive seen plants with too much red do shit withouht other colours present..... dont even post about HID in the LED section... because we are looking to...

one sec, i kinda messed up with the qoutes....

First off i fully intend to call people on their shit. Anyone who thinks that chinese LEDs are way worse then americans LED's is an idiot... maybe 10-20 percent difference in performance.... while at 1/4 the cost...... american companies often fabricate their semiconductors in china.... and...

Nope, go for something with 1-3 year waranty.... if you expect to have this light working for 5-10 years... the company should sure as hell back their product for 1-3years. but nice spectrum....bottom line 90 days is not really a fair warranty for a device that cost 500$. unless you want to take...

I think we can all agree that Ebay has a lot of different products and anything nameless is warent for skepticism. However Ebay has a lot of now name LED's that work just fine. You could source 380,420,450,475,520,580,630,660,730nm 1 or 3 watt Chinese LEDs and build yourself fa killer array...

flush your plants and let them dry out a bit if they are drooping... drop them into flower and see how they behave... fuck em...

Sicko, what LEDs (manufactur, wavelength, power) are you using? How hot are they running with your heatsink/PC fans? what are you driving your LED arrays with? seems to me your only using red and blue which is interesting but it doesnt cover much of the spectrum. If you go full flower will be...

Spend some time burring a high quality power cable if there is a utility connection near by. There is no Battery set up that i would recommend considering that even for a small grow you need considerable power for a 12 hour photo period. Even an LED with a shit tone of high capacity Lithium...

What was the final weight of the HPS vs the LED for those beautiful comparison pictures taken? Like total or G/Watt for both set ups I have my doubts about LEDs ... but this shit is the future

hahah why would you call that plant a "sativa" ? Cause it was 1 inch higher then the other one? really? try a 15-20 week flower period....

As i have received no feed back i will attempt to create OC. My plants i now about day 39 majority of hairs are still white, but the buds are full. I have not found any male flowers on the plant, i believe that i found about 5 male flowers in total. Since no flowers have grown in new buds, I...