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Just glad I pique your interest. And thanks.

Closing shop for now. I liked them a lot. Low fuss, very bright, and great in terms of heat and my grow space (2'x2', 150W, stopped running AC, just an 80cfm exhaust fan through a carbon scrubber, temps up to 97F with lights on, but also my grow room circumstances were... not usual, so you...

Everything's gone. Thanks for looking.

Yeah, no problem. Running about 100W of Royal Blue about 27mm away from an Intematix ChromaLit series CL-927-P215-PC. The lens came in a 305mm x 215mm rectangular format which I cut down to ~220mm x 180mm so that it would fit the flood light I was using (picture here, it was a modified 30W flood...

For those interested in the verdict, my final thoughts on the RP flood light that I made. Guod was right, RP overload. I increased the RP lens size considerably and there was still too much heat generated at the RP layer. Discoloration of the phosphor after a single harvest, probably more Blue...

Sorry for the forum clutter, but figured I'd give this a try. Not looking to make much money off this. Anything that isn't sold goes to recycling so why not allow others the opportunity to get some use out of it? Looking to sell as much of this to as few people as possible to keep...

200 Watts of top shelf components sounds expensive to me. Why not go CMH?

Cool! I bought a 150W Philips CDM-T Elite 930. This thing rocks, I agree. Awesome color, plants look very life like. Very bright. Not too much heat although I'm probably running too much light for my grow space so it's getting a little warm in there when the AC kicks off for however long. Have...

I'd simply upload the PDF if I knew how/it was allowed, I realize the way I posted these are sort of a hassle. Then again, I don't imagine too too many people are interested in this information. I believe you can calculate efficiency using the Fe values measured in Watts divided by the "lamp"...

600 W / (m^2) = ~55.741824 W / (ft^2) Not bad, most suggest 30-60W/ft^2, but this is at the wall and assuming the efficiency of the LED components we're using is approximately 40%, although it's probably less in most instances. So, if we assume that 600W/m^2 is actually observed by the plants...

I had no problem with VanQ or the products I bought from them. Their chips are not the most efficient (your typical Chinese stuff), but whose are? I have a few of their test reports if you're interested in the efficiency of their products.

Are we talking about the LED screw-ins that can be bought from Home Depot? If so, yes, they should perform as good, or better. LED bulbs should handily outperform CFL bulbs of equal wattage. And to a degree, they should also outperform CFL bulbs with the same incandescent equivalent while...

4'x4'? Wouldn't you want like 600W total over that size area? Maybe two of these? http://www.alldaylighting.com/product/metal-halide-lamps/philips-411058-cdm330-u-o-4k-ed28/ They run off 400W electronic Metal Halide ballasts. Just a thought. Very nice SPD, very efficient, and an easy DIY...

Yup, 4000K. I don't believe people ever really considered them HPS killers for flower, there's more Blue/Green than you really need, but should be great for veg.

Didn't they cancel the retro white line? Is it 4000K?

The ballast consumes power/generates heat, you typically do draw a little more at the wall than the rated wattage of the lamp. Perhaps a matter of twenty Watts or so in this case. Not necessary, but some IR flower boosters could be cool. :weed:

1W Violet pump package has been finished. 192.9 mW out / 1205 mW in = 16% efficiency Aye aye aye. I just bought a CMH bulb. 92 CRI (nom) Ra8 (no R9 value, but judge the SPD yourself) 2800 K 100 Lm/W

Reptile lights usually emit UV light. I think I've seen a ceramic, bulb-like thing for reptiles that emits IR, as well. Plants like UV and IR to an extent, but certainly not as primary lighting. You probably wouldn't even have your UV or IR bulbs on for the full lights on portion of your schedule.

Little LST on the middle child. Oh, and guess what. The 50W Warm White spot is back. http://www.youtube.com/watch?v=hQo1HIcSVtg

Not sure I understand. I would think plant height is somewhat limited indoors since most our ceilings are 8'. After you put into account the dirt/hydro system and the distance between the ceiling and your light source, 6' plants sounds somewhat possible. Tall plants need a lot of attention to...