well, if you already have been using a 1000w mh, you may like "upgrading" to an led. That's what I did. But probably nothing today is going to beat that 1000w. For smaller applications however there is a great debate about the quality of light. Just anecdotal from watching and observing and comparing I would say led produces a much more usable form of light that the plants seem to love.Thank you so much! So I should stick to my 1000 w MH light? I've wanted to upgrade, just not sure if it'd be worth it. Is MH what people are still using? I am curious to find out what high end growers are using for indoor grows?