Search results

Oh, cool. Didn't know that.

With the silicon layer being an economical light diffuser (not specialty or meant to be highly efficient) my guess is it absorbs ~10% of the light. Really rough estimate, hardly any basis. Diffusers don't tend to be the most efficient, though. So, yeah, I'd say they limited the radiometric...

Voids the ten year warranty, possibility of damage to LED and/or phosphor upon disassembly. http://www.candlepowerforums.com/vb/showthread.php?356710-Cree-A19-9-5w-60w-800lm-2700K-for-13-97&p=4172285&viewfull=1#post4172285 You can also go to Cree's website and look up the documentation on the...

Yeah. http://www.designingwithleds.com/cree-60w-led-replacement-bulb-review-and-tear-down/ There should be a little more discussion about the subject within the next page or two, in both threads: https://www.rollitup.org/led-other-lighting/656542-flowering-cree-bulbs-13.html#post9450083 Lemme...

It's gonna be sick. I'll watch.

So due to atmospheric scattering, not even sunlight is an "ideal" light source, it's simply very close to one (of varying CCT depending on time of day, the date, and latitudinal degree). You are correct, human sensitivity is taken into account with CRI (UV and IR do not play very substantial...

So the Bluray player died. I opened it up to try and fix it, but LG made the laser all funky and I can't even access the head. So, long story short, I gutted a free heat sink out of it. I'd say it could handle ~20W. It's a left-over 30W RGB from the remote phosphor project. It came with the...

Guhddam that plant looks healthy.

I like the idea of high CRI Warm White light. I don't, however, like the efficiency of Red/Deep Red phosphor conversion. I like how Philips put Red chips behind the lenses of their remote phosphor bulbs (the ones with Red chips basically have NW phosphor it looks like). High CRI, 2700k, nice R9...

I think you're right. I'd say the heat sink that I bought could cool three 9.5W modules if you could somehow fit them on there. On top of that, I'd guess it'd only get noticeably warm. Before you buy a bunch of Cree bulbs and tear them apart, though, why not buy Cree LED's mounted on stars? I...

CRI is less important than the R9 value, imo. Arguably, CRI is more important the more you rely on low CCT White light for flowering. Simply put, the R9 value -and by extension somewhat, CRI- tells me how well the light source covers the 630-650nm waveband which also happens to be the...

I did, actually. I sorta sprinkled information around the forum about it, I can see where it might have gotten lost. Some's in here, some's in captain's Cree thread, and so on. Here's a post I did about the general construction. Hope this covers what you're looking for. There was another...

The meanwell drivers will throw heat, too. I have a 60W meanwell driver that I can use as a heating pad for my bubble cloner. It still gets hot enough to warm 50fl oz of water a few degrees. A 100W meanwell might not be quite as lava-burning hot as a 100W Chinese generic, but I'm guessing it...

I think 64 degrees is fine. I believe Illumitex LED arrays were ~50 degrees, each array was ~10W. They penetrated the canopy fairly well, too. I've thought about buying some Soraa MR16 bulbs. Those are 12W, single chip, 36 degree beam angle. I wouldn't want to go much under 40 degrees, but 64...

Swapped a 36W panel for the 50W Warm White spot from the veg room. Looks nice in there. Very wide spread of light without any optics. In the veg room there's new growth on the littlest clone. As soon as it's root bound it'll get transplanted. New soil mix: half compost, half recycled super soil...

https://sunlightsupply.com/p-14937-philips-mastercolor-lec-315-lamp-3100k.aspx It's just a Philips CMH. Yes, they are very good lights. Efficient, high CRI, pretty low CCT. These are things that usually don't go well together. That said, $600 for 315W seems kinda high.

That driver should work fine, but will get hot, though. I have a 100W driver like that and it throws quite a bit of heat.

Idk, I usually don't recommend moving plants that were outdoors back indoors, mainly because of bugs. If you still want to do that, however, we usually recommend 40-60W per square foot of grow space.

HA! What???? Geeze, you forum Nazi. Gave me like 3 seconds to delete.

Not sure how big the plant will get before it'll need more light. Maybe by the third or fourth node? What season are you in? When will this plant get moved outdoors?