not to my knowledge, but you would think that manufacturers would eventually see the need for producing a sort of "double wide" led light fixture with the increasing popularity of larger and larger cube/square tanks. it seems like they either making fixtures longer and longer or just advise you to purchase multiple units.
if all else fails and you still want to get some new LEDs, two 27" 160 watt maxspect razors hung/mounted from front to back say 8 inches apart (picture roman numeral II not --) would certainly do the trick. similar arrangements of any of the other popular LED fixtures would do (AI, ecotech, reefbreeders). or if you enjoy DIY projects, you could certainly put together a square or circular LED fixture to fit your exact specifications!
