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Not to sound know it all ish, but this is really something we already knew. We know the necessary wavelengths that plants like, and are even narrowing down the supplemental wavelengths as well. The problem is intensity which translates to penetration. In this we have not enough, which results...

Thanks! im hoping it all adds up to more than 3z, i would like to get a good g/w ratio going, as well a good g/m^2. I also plan to do a mini review on this light. Keep in mind this light is no longer made, as well my experiences were by no means the optimal situation. Mistakes were made, as...

Thanks, I will link here for the next grow. It's an experimental grow, should be fun. I do have ventilation. Before i added co2 i was running two pc fans. One at the bottom pulling air in, supplementing the passive intakes, and one fan at the top sucking air out. Once i added co2 I closed the...

Wow. It has been entirely too long since the last update. So here we are. The plant is dead.... In a good way of coarse. The thing took a few hours to trim, id say about 4. It was a tedius trim considering the amount of leafy, just okay bud, i ignored a lot of small not even popcorn bud. In...

As you can see, they also dried out a little before i chopped. This was not on purpose, but is not really a huge mistake either. Too close to the end. Below are some harvested pics Ah forgot to say. Its hard to see, but personally this is the most resin packed/ stickiest plant i have delt...

Wow. It has been entirely too long since the last update. So here we are. The plant is dead.... In a good way of coarse. The thing took a few hours to trim, id say about 4. It was a tedius trim considering the amount of leafy, just okay bud, i ignored a lot of small not even popcorn bud. In the...

^ try to get a spectrum graph for the blue light. anything that gets into the red near 660 will prevent flowering, if what hes saying is true then you should be fine. I have seen limited experimentation with blue during the night to prevent stretching, i wonder how the orange will pan out.

^ and keep in mind even the HPS we use today is not a grow light. granted, they have come a long way to adapt them to growing :p i like the multi diode chips, its a nice way of simplifying the process and compacting everything. I just bought 3 10w leds for my 740 experiment. Keep in mind...

This is similar to my next experiment. I can give you a very brief rundown of the concept. Plant flowering is regulated by the ratio of pf to pfr. Red at about 660 converts pf into pfr, while far red around 740 destroys pfr and turns it into pf. It is possible to run 740nm light at night to...

Probably Sunday. Ill post some current pics now, and take a better look. I might turn the lights out for good on friday to try out the few days of darkeness thing. Still not as swollen as I'd like, but i think she's about maxed out. Hopefully the density will save me ;)

Thanks for the info, i will have to check them out. For my needs i can't have any red lower than 700 ideally around 730, I'll see what they have

Getting real close to cutting. Pretty sure she's ready. I haven't decided if I'm going to full or partial harvest. I generally don't have luck with partial harvests, they always seem to disappoint.

^ I would completely disagree. The first step in utilizing the silicon based chips is applying that technology to the greatest market demand, which is home and commercial lighting, which translates to the white leds. Once they apply this technology to the spectrum we use for growing, which they...

Thats what i've been saying. Were on the cusp here for a big leap in LED (and other tech), so if you have em, rock it, otherwise stick with something cheap until we get more stabilization. The main reason this will help with cost, from my understanding, is because the silicon chips are...

Sounds great, I've been telling people about the silicon based chip that bridgelux is creating. It sounds like they are both gearing up for a big step in led tech. Exciting stuff. Im going to get some free samples haha :p

Time for animated gif grow porn. Maybe just one more shot and a few after shots to add in, but kinda cool as is.

Check this out, i just made it! haha maybe next grow i will try to take a pic every 3-4 days from the same place every time for a movie-like gif :)

Personally my ventilation is such that only the top area where the lights are get vented. So co2 with the lights and vent on is decent since, like you say, co2 sinks. But in anywhere with normal bottom intake top exhaust ventilation there really is no use in stocking up co2 at night because...

Here is the link for CMH lighting, though im sure you will be happy with led if you stick to the known brands. http://advancedtechlighting.com/cmhmain.htm

From all the led hps comparisons i have seen, the ones that were well done/controlled, the potency is very close to one another. At this time i think the biggest factor in a strains potency is the grow itself. An optimal environment, optimal nutrient level, adequate light of any type, and proper...