yes, hard to say without a couple grows to go by really. I just took mine to 300 watts ( 75 watts per COB ). That was a noticable difference from 1/2 power
that 10" fan hanging in there makes a huge difference in the heatsink temps too! There were hot, but bareable to touch, now just a little warm. Hoping next week to get a new infrared heat probe. I'm wondering if they'd handle 100 watts with the fan on them.