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That study is interesting, it's going completely that way, for so long I was told religiously that red:blue is "all that is needed", even some bud-porn to prove it, but those statements weren't quite true, some strains can grow near optimum with just 2 wavelengths but most will reach better...

Is it true that certain strains react best to only red:blue and others require that "full spectrum" to be optimum?. Lewis..

Yes I know, my spelling and typing are terribly incessant. Takes me a while to write something, without taking a break.

I have used these before... http://www.ebay.co.uk/itm/10-20-30-50W-LED-High-Power-Light-Lamp-Chip-Power-Supply-Driver-Cool-Warm-White-/261262267337?pt=UK_Home_Garden_Lighting_Parts&var=&hash=item3cd471d3c9 They veg plants excellently, obviously since it's a blue diode with YAG phosphor to...

Hi, I used these at first because they were so damn cheap http://www.ebay.co.uk/itm/10-20-30-50W-LED-High-Power-Light-Lamp-Chip-Power-Supply-Driver-Cool-Warm-White-/261262267337?pt=UK_Home_Garden_Lighting_Parts&var=&hash=item3cd471d3c9 nowI have looked at countless "spectral distribution"...

Yes, here it is http://www.ebay.co.uk/itm/131111441415?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 another type I use is this one...

Yes you are right about the heat given off from single high wattage diodes, but after purchasing a few I've found even stock CPU coolers can handle them, my 72w multichip is easily handled with this...

Hi azhden.... I know a fair bit mate, particularly regarding COB and multichip LED's, I have 4 of the various kinds of VANQ chips, 2x 72w 7-band multichips(660,630,600,440,470,380,730) 1x 100w 7-band version and 1x 100w 380-840nm "full spectrum" phosphor technology. They do perform, believe me...

No I don't work for them, I was slightly defensive and have told mellowdrama that it was reactionary of me.

I Hear what your saying PetFlora, but it have to admit I can come on too strong sometimes, I get quite reactionary if I think scepticism is pre-disposed based on first impressions, if something don't look the part and/or people just don't trust a company or product co's they think it might be...

True, very true, I have to concede some ground regarding my reaction there mate, apologies.. Bottom line you are right We and " I" don't know for real, especially as china has a history of unscrupulous production standards, marketing, advertising and is frequently over-zealous in its grandiose...

ASTIR VERY INTERESTING, the designs have proven themselves, proven to be more than adequate though surprisingly to me regardless of best binning type and eventual quality of diodes, seen a few different spec's of ASTIR, more red's, more NW, WW. ASTIR to me was the most glaringly clear proof of a...

yes i think they use UV chips or 460nm blue and 660nm red underneath the phosphor layer, i have the 100w version, basically white light with pink infused, vegged as good as anything else i have tried, the question of can it flower effectively i will find out in about 4-weeks and update you all...

No sorry pal they are not, as far as we know we don't know anything truly really do we?, so let's not assume they are Low bin, low quality, try to research a bit more before you jump the gun mate, I have the 100w version and believe me mellodrama they perform very well under WwxBB. These are...

YES..... finally someone is trying the new "full spectrum" phosphor white LED, I also am trying this chip in my grow, I have a 100w version that cost me just over £30, heatsink is an arctic alpine 11 plus with 100w heat dissipation, keeps barely warm to the touch. Nice pink kind of light, I have...

funny you guys should be saying all of this regarding LED chips, K colour temps, phosphor coatings an varying wavelength peaks and exactly what is best overall.. one thing i will say is this female seeds WWXBB feminised, very homogenous, odour non-existant, vegged with those eBay 50w-100w warm...

Don't let anyone tell you that expensive led grow lights are far better than Chinese direct, they are full of shit, it's 2014 now and you have proved that some growers are still stupid enough to pay stupid money for performance that is at most only marginally better than a £200 ebay grow...