LED Grow Light Forum

I just recently discovered this forum so I wanted to post some results. I'm Currently at the end of week 2 flowering. But I will be starting from scratch and posting results.

My Current Setup
- 4x4 Secret Jarden Dark Room II
- SolarStorm 800w Led with UV
- 2, 2' t5's with 2700l 54w bulbs, and 2, 2' 2700k bulbs t5's hanging around the perimeter a bit lower to increase pars on the outside
- A 250cc inline fan connected to charcoal filter at the top of the tent exhausting outside through an insulated hvac line
-14000 btu air conditioner/ dehumidifier / heater / fan. I removed the plastic movable vent and built a box out of aluminum, connected to that box is a y pipe, connected to that y pipe are 2 insulated 5" lines pumping fresh cold air into the bottom of the tent
- 3 fans, two right where the air comes in shooting it straight up to mix the air, keeps my humidity down without having to use the dehumidifier. and one oscillating
- I play classical music for my plants, read an article, myth buster also did a show and posted results... interesting
- My water is reverse osmosis, ppm out of the tap around 1-3, its a 4 stage filter, takes a long as time to fill a 5 gal bucket, so buy a higher gpd, mines 25 and its not enough
- The ph is 6.3 -6.5, Im growing in a mix of peat mose, vermiculite and petite.
I have six plants, they were started from seed, its a bubba kush, I vegetated them for 5 weeks, toped and supercroped them during veg, 18 hrs of light, when I kick into flower Ill go 18, 16, 14 then 12, slowly switch it down.
- Installed a drain taboe, All my plants are sitting on a drain table, When I first started I had them in those plastic catch trays, and I would always spill them on the and loose my mind such a pain in the but, now I water and she drains in the table directly to waste, awesome. I use advance nutrients
I have mothers on my shelf developing, i've cloned them to see if there mail or female, but I bought grand daddy purple, skywalker kush, holy grail kush and og ghost train haze, ill be switching to deep water culture and cloning these mothers, and posting my results weeklyish from start to finish

My tempature is 23-5c during the day, and 20 at night
no co2
Humidity 75-80 during veg, 50-60 during bloom, great thing about this light it comes with uv bulbs, great at killing mold, so you can have slightly higher humidity levels, I've also noticed my leaves are thicker and healthier, my stems are beat purple, and have purple lines running through them, my stalks are like torque bits, a star fish, not smooth and round at all, never seen that before, will see how she buds

Welcome to the forums!

While CLW claims the SS800w will adequately a 4x4 tent, the journal here seem to show that you get better results with more w/sqft. If you don't mind less than top-shelf results then you should still get a decent harvest.

14k btu just for a 4x4 tent is a lot of AC but you should be able to maintain any temp you want.

Fans shouldn't do anything to control humidity in a tent but it will keep it even from top to bottom.

I'm not sold on the playing music for plants thing but some people swear by it.

I'm also not sold on dark periods for veg or the gradual time cut to get to 12/12 but there is some interesting debate on the latter.

I like the ebb-flow drain tub idea too, I think it makes a lot of sense for indoor drain-to-waste grows.

I've heard mixed things about advanced nutrients but I've never tested them myself.

I'm not sure that the UVB bulbs that they use in the SS series lights is very good for mold/mildew sterilization so you might want to keep an eye on the humidity anyway...

Purple stems, veins and petioles often can indicate phosphorus deficiency, maybe cal-mag or it could even be caused by a pH lockout.


SME

You need to pick one username, you don't need two accounts...

Sorry about the two accounts tried to change my email address but typed it in wrong so I can't activate it or log in any more. Im hoping the purple in the stems is actually a natural pesticide and not from any deficiencies, the 14000 btu Ac also controls the room the tent sits in. By throwing fans in there and mix inning the air it does keep the humidity down a bit, normally when you have cold air flowing into the bottom and hot air from the light exhaust mixing it crates humidity, so it's important to have a consists temperate from top to bottom. For verging this is the best results I've ever seen, will see what happens in the budding phase, so far great results.


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In The past I've put my plants in the dark for 24hrs, then threw them into budding. most recently I would just kick right down to 12 hrs, this is the second time I've tried gradually stepped down the light in 2hr increments. When you put them in the dark I find it stresses them out a bit, that's not something the plant is use to seeing in its natural environment. Kicking down from 18-12 I find is better, but it still causes minute levels of stress. I encourage you to try slowly stepping down your light. I've noticed the buds are a little bigger then my previous grows at the beginning of week 3, It can focus on budding rather then being stressed. In nature the sun just doesn't abruptly go from 18-12, it gradually does. When you give you plants nutrients you don't give them a full does you slowly introduce them to it, you also wouldn't go from 23c to 31-32c with 1200ppm of co2 either in one day its a gradual process. Any time you make drastic changes to your space, in my experience I've had better results with gradual increments. That's what's so great about sharing information over forms.

The T5's in my room were initially a backup light system, I Highly recommend everyone gets one. Even when I grew hid and mh, if you have a bulb go out, or a ballast blow, or a breaker go out its could herm your crop. So I have these T5's on a different timer, different circuit entirely, they come on 15 min before my 800w, again to try and mimic nature as much as I can. That way it doesn't go from dark to 800 or 1000 watts of power depending on what your using.

hopefully with the mix of t5's growing the appropriate size plats, the most optimum conditions I can provide, reverse osmosis water, and the solar storm I can yield results.

I find with this led in particular you don't wanna grow huge monster, just smaller plants, better penetration if there 6' tall the lights not going to make to the bottom. 3-5 perhaps, don't really no. If I don't get good results Ill know its probably due to lack of lighting, but from what im seeing so far i'm expecting good results

regards

Here are some pictures of the air-conditioning attachment I built. Ill include some pictures of my room later the lights off

You are correct fans aren't going to take moisture out of the air, before I had all three fans just blowing on the plants, remember I have cold air coming in at the bottom, and the heat from the solar storm up top. My humidty levels were always in the 70s I was going to purchase a dehumidifier. Instead I pointed the fans straight up, that forced the cold air straight up, now the room temperature is uniform from top to bottom, really important. When I did that my humidity dropped right down to 57. typically I would prefer 45-50 while budding, apparently mold doesn't grow at those percentages, too low you can stress your plant, but with the cool temperatures and air movement, mold isn't really a concern, plus uv-a, b, c all kill mold, so in theory the uv should help, you can actually buy a dehumidifier from Wal-Mart that's tankless. its about an inch thick it sucks the air in passes it through a uv bulb and right out the other side. That's why we
don't have mold growing rapidly outside in our gardens, the sun gives off the uv spectrums that kill and suppress mold growth, obviously more efficiently then the solarstorm unit does. Black dog has units with uv spec that run the entire time and IR

Here are some pictures, one mistake I made I let the ladies get too big, my next show I plan on growing fewer plants, utilizing lst training ill grow smaller bushier wider plants for better penetration, but so far its pretty good. anxious to see the results

One thing i've noticed, the plants produce lot of anthocyanin's in the stems under the led, that's the purple in the stem, its a natural pesticide the plant produces, you can see it in one of the images

Purple veins, petioles and stems can also indicate a phosphorus deficiency, etc...