I understand your skepticism. But people are saying LED is a viable light source for growing plants. I noticed most of the people talking badly about LED's have never actually used them. With all the benefits of LEDs I think its worth trying for myself. If I dont like it I'll get a HPS system. The potential savings and convenience is worth the risk.
I think you mis-took my advice, or rather, I wasn't clear enough, in giving it?
What I was trying to suggest, is that you should be very careful to not buy a system based on the manufacturer's ad, how great the light looks, etc... because most of them aren't worth using, even though their ads say otherwise. LED lighting, is a viable light source, but only if you use the right product. There are only a few companies that produce a quality product, and that, was my main point. I was trying to prevent you from wasting your money, and buying something based on the advertising, alone. I advise that you view some actual results, first. I've seen a few nice LED grows here at RIU, which'd be the place I would start.
It's funny that you linked that light from HTG Supply, because I just so happpen to have some firsthand info, about those.......
""the Tri-Band 120 watt LED GROW LIGHT boasts light intensity and growth rates exceeding that of a 600W HPS""
^That's a quote, directly from their ad. Kinda implies that the 120 watt Tri-band will compete with a 600 HPS, right? I thought, "Wow, I buy my stuff from HTG, so I want to check into this.", and went to their shop, myself. I wanted to replace four 400 HPS lights, with 4 of those Tri-bands, and reap the rewards, that we've all heard about LEDs, efficiency, low heat, etc.... They fool you into thinking that one Tri-band will damn near replace a 600 HPS, so I assumed that they would easily replace a 400 HPS. Right? Wrong! I pressed them for info, and basically told one of the head guys there, that if I spent that kind of money on those lights, and they didn't do what they claimed to do, that I'm come back and shove 'em up his ass.
Then, he came clean, with me.....
...
Yes, that light will perform similar to a 400/600 HPS, BUT, will only cover a fraction of the area. Yes, you'll get nice dense buds, but
what they fail to mention in the ad, is that the light will only cover approx 12" x 18"(give or take a couple inches), and that you'll need 4-6 of them, to replace a 600 HPS. You'll end up using close to 75% of the wattage of HIDs, in order to effectively replace them. I'd need 10-12 of those 120 watt Tri-bands, in order to replace four 400 HPS lights. Yes, they are more efficient, and have other advantages,(heat dispersion, etc...) but are also
very expensive.
I wasn't trying to dissuade you, I was trying to stress the importance of not buying in to the hype, not until you've done the research, first. I would go inspect some actual grows, then decide if LEDs will provide you with the performance you are seeking. That, is my advice to you.
Ads, are too misleading/exaggerated.