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A particular grow test that many of you have been asking for is comparing the 600w HPS grow light to the XML 350 LED grow light. In this test, we compared the two using Roma Tomatoes in soil at 6 weeks from clone, and from it you can clearly see how the same plant grew better under the XML 350. While there was some growth from the HPS light, there was more growth in leaves using the XML 350, as well as more tomato growth.
For more information on the XML 350, please visit our site at http://www.advancedledlights.com