bigsby I understand where you are coming from, as I said earlier that of course cost and heat will play a role with HID lighting. But why would he sell me something cheaper, and comment on its effectiveness over LED when he could have just as easily sold the LED and made more money from it. Either he is not well informed, or he knows what he is talking about.

I see alot of threads on LED vs HPS and I gotta say its quite sickening, because 1, most of the people that comment on those threads are the same people that sell LED systems... hmm big surprise! So of course there will always be talk about how HID systems generate alot of heat, and cost more to run than LED's. That is something that I will agree with, but when it comes down to it, overall yield from a LED grow side by side to an HPS grow I would like to see them say that hands down LED will produce more, we all know that is complete and utter bs. I am no expert on plant physiology etc, but I do know that HPS and MH imitate the sun better than anything out there.

If you look on many boards, not just this one, there are similar discussions about LED and HPS and majority of people agree that HPS is the best. Why would people make such claims? I will look more into it, and in the mean time I am going to call local nursery's and see where they stand on this subject.

I use HPS, so I can comment on how well it works, I have seen many grows from MH/HPS, and I have seen a couple from LED strictly, and the LED grows look lanky and less dense... maybe there is some underlying reason for this? Look at just about every HPS grow, all the buds are dense and thick...


And to be completely honest, how many plants can you really fit under one LED UFO fixture, doesn't look like much, and we both agree that penetration would be an issue so therefore you would need additional LED on the sides, to penetrate which in reality would probably cost the same as an HPS system to run. So really, lets take all factors in to consideration, not just the downsides to HPS and all the upsides to LED.

As for bulb replacement, once every one or two years, vs the amount of bud you grow = minimal cost. And fire hazards, well, if you have your setup properly fire hazards are not an issue. Same goes for a 60W light bulb on your coffee table. And to compensate for heat, just get ducting, an inline fan, and your set, no more heat.