Hotwired
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That's why when we talked about this a few weeks ago I went with 4 of them. I really wanted to FILL the tent with light and I was already using 600 watts so I figured what the heck.The 100 is my first HLG. I would have never thought for being a smaller light it would have ZERO problems vegging in a 3x3. I really didnt believe their claims as they say they do veg a 3x3. But the plants love it.
I want to get the Bspec boards and triple heatsinks next time................if and when they ever get them in.