At what height do you have them mounted?I have both and my biggest complaint is that I can't adjust the intensity of the Orphek bars ... they were supposed to release a dimmer this spring but haven't yet to my knowledge. I have the blues of both to supplement a couple hydra 52 hd's . The orpheks increased the par too much and starting bleaching some of my coral. Switched to to the XHO with the dimmer and corals are responding better.
I also bought the two of them but still in transit. I’m afraid exactly of that with the Orphek. My canopy allows maximum mounting height of 8 inches from the water.