I'm honestly not 100% sure but the specs state that 61" version has eight "œstraight holding brackets" which would lead me to believe it's setup for up to 4 Mitras (2 brackets per Mitras). The 48" appears to be setup for 3 since it has six straight holding brackets. So I am pretty certain the 61" is in fact designed and includes the hardware for up to 4 fixtures.
