I have in indoor garden where I grow kitchen herbs like Italian basil and oriental basil, and some other medicinal herbs because it is too cold due to frost to grown them outside in Winter. I had tried CFLs before, but this light, for the little energy it consumes and with it's full spectrum capacity is the best light I have ever found for the job. Pretty remarkable really. Although it is suspended well above the plants according to the instructions, 24 inches to 18 inches, you won't see the plants getting thin and stretching up to the lights like I have experienced with CFLs. The plants grow normally as they would outside, and with plants like basil, they can be put far away from the light, allowing other more light needy plants to be put closer to the source. I recommend this product for anyone wanting to grow indoor in Winter and for it's low energy consumption. It's certainly worth paying the price for the quality alone, and the fact that it will last about twice as long as cheaper brands that are available.
I bought this as a project to grow apple trees from seed - and within 1.5 months the trees had grown fast enough to require replanting already into bigger pots.
Very good light distribution - very powerful LED's, would recommend having the light more than 1 metre away for small herbs as they may suffer under the extreme light. My Chia seed plants and capsicum plants (cayenne, habanero etc) wither away from the light however my Thyme, Oregano, Lemon tree and apple trees loved it.
I would definitely recommend this unit for indoor growing, just ensure it has proper ventilation as it WILL get hot quickly if there is insufficient airflow.