Hey there Nick, I just had a peek at 23 watt vs. 42 watt as far as lumens go and it says that 23 watt lumen output is 1600 while the 42 watt is 2600. But I do see what yer saying, the energy cost would be lower. You make a really good point there bro, since my grow is smaller scale the 23 watt maybe the better choice for me. Thanks for the good info and for looking out. <EDIT> Ahhhh ok ok, now I see what your saying Nick. I did the math and what you posted is 100% correct. The 23W puts out 69 Lumens per watt and the 46W puts out 64 Lumens per watt. Bless you mate for the good info, you rock!! May your buds be sweet and strong!!! <3

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