I have 2 xr15's mounted in a 36" tek light with 1 t5 on each side. Fit great over my 90g. Comes with reef link as well! Only had it over my tank for about 3 months before I sold the tank and has just been sitting in my garage for future use but not buying a new tank anytime soon. Bulbs on t5 probably need replaced. Radions are gen 4 pro. Located in Saint helens Oregon. Not willing to ship.