Yes, Gen 4's (the best...gen) They are affordable and in some ways superior to later ones. Also the Blades are amazing for coral growth. Might buy a Gen 5 from someone one here. Was used for a year at 35%. He wants 400...seems fair.
I've been very happy with them. I ran them on the 180 for over a year and everything thrived. I almost invested in new lights for the new tank then thought better of it and just bought an extra k7 for a backup. I may need some fill lighting later on the WB but am going to wait since all the...