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I've read in MANY reviews that the GE starcoat 6500K bulbs don't last very long. I would try for the Plusrite 6500K brand. They will have the number 865 in the model #. If you can find a bulb with 965 in the model # that would be even better, I'm pretty sure the CRI rating is higher on those...

I know I've already asked you, but what bulbs are you using for veg and how many of each? Also, what type of strain are you running? What nutes? Everything is still looking awesome as before. I'm sure if I was still running the NL strain I wouldn't be having any problem whatsoever, since...

I've tried about 5 different types of daylight bulbs. They are all pretty close in comparison as far as color goes, but some lack lifespan. So far I've found the Zoo Med Ultra Suns to do a fairly good job but they are quite spendy(about $11). The spectralux's are what came in my Sunblaze and...

Been keeping the lights 14" from the canopy. NOTICE: READ HERE: NOTICE: READ HERE: NOTICE: READ HERE: So if you miss this post it is not my problem anymore! LMFAO NEXT: Just checked in after running the comparison between T5 combinations after 2 days. (as a reminder to those that...

I have the same question, also added to this question: Will Canna Coco A,B work well with the CocoGro medium? I've heard the Canna Coco resembles sawdust and holds water.

T8's are really nice because they are efficient and run EXTREMELY cool. Good for vegging if you have an 8 or 10 bulb setup. I run 4 6500K Zoo Med bulbs, 2 5000K Flora Sun Zoo Med bulbs, and 2 10,000K Ocean Sun Zoo Med bulbs. Real nice, really really really nice

For those of you that are doing grow comparisons with these T5 bulbs right next to a HPS light, that isn't going to show how the T5's are stand alone vs HPS. If you actually want to do a valid comparison, you have to keep the T5 lights far away from any other light source. And, no I'm not 20...

These bulbs suck, had 2 burn out already after 1 week

RedOctober, the reason growth has stopped is because these bulbs do not work for some strains. Seems as though some strains prefer the RED over any blue at all. Try the 2 Flora Suns and 2 6500K for a week and see what happens, I'm sure you will be shitless with surprise. red causes stretching...

I've tried using Actinics and they really haven't done a damn thing for growth. Also it's a well known fact that in the aquarium industry they are only used for looks. I know plants utilize part of the lower 400nm spectrum, but not to the point that adding excess amounts will change anything...

I really don't think the KZ Fiji Purple bulbs are necessary. I am getting excellent results now with cheapo 6500K bulbs mixed with, Pink Procolor(floramax, florasun etc.) 50% 6500K and 50% PINK, and ONLY 1 ATI blue bulb for vegging. I would switch the ATI blue bulb out for another pink bulb...

>Why is the 660nm wavelength so important for flowering plants? Lab tests have shown that chlorophyll absorption peaks at deep red 660nm, so many grow lights use a lot of this wavelength. Plants need the whole red spectrum, but too much deep red causes the plants to stretch.

I'm starting this thread to give people some direction when they need answers to questions such as: 1. What type of T5 lighting is best for vegging? 2. What type of T5 lighting is best for flowering? 3. What T5 bulbs to avoid? 4. Do T5 bulbs really have as much potential as HID lighting...

Haha, yeah.

Really? Are you sure? The only difference between a 2' T5 bulb and a 4' T5 bulb is the area they will cover. As far as light intensity and wavelength, they are identical. Seems like you would know this best out of anyone. As far as combination goes, I've stated my bulb configuration every...

Also, I want to add some interesting info I got from doing some research that may help ease some of your minds on this whole RED 660nm issue and not being able to get the "procolors" anymore: "You can use 630nm rather than 660nm and it works no problem. Actually it works better because...

BTW Calrt's garden is lookin the finest so far. He vegged under a 600w MH.

WOW, all with name calling and everything! Apparently you haven't read any of my posts. Pretty sad considering this is "your" thread. Do you always throw temper tantrums when someone calls you out on one little statement? As far as maturity level goes, I'm pretty sure you just proved to...

Hyroot, I never said that YOU said you swapped blue for red. I never even used those words so I don't know where you are getting that from in my statement. But I also have never heard that adding red would prevent stretching, I beleive you have that backwards. Anyway, this is really getting...

Calrt, lookin real nice! What did you veg under? What bulb colors etc.? Hyroot, you have it backwards. BLUE is for veg, red for flower. I've never heard of blue light causing plants to stretch. Blue light is supposed to keep the internodes closer together and make growth more compact...