apex 07138 21.5”h x 7.25”w x 4”d 04: LED - 7.4W (Dim with 0-10V dim system) LED Retrofit available apex 07138np 21.5”h x 7.25”w x 4”d 04: LED - 7.4W (Dim with 0-10V dim system) LED Retrofit available 21.5” 4” 7.25” side front top 21.5” 4” 7.25” side front top Page 157 for all specs and options. 128