John
I have been using the Lightolier for many years but just started using the Elco to try and reduce the cost. Elco actually has 3 different housings (1 for each wattage). The 26 watt housing is a single wall housing and is limited to the 26 watt lamp. The 32 and 42 watt housings are identical and all 3 use the same ballast. According to my supplier all 3 are the same price so we use the 42 watt housing and install which ever lamp works best for the application.
Almost all bathrooms I do have a recessed light over the shower or tub so I will use a fluorescent with a lens and it provides much better lighting than an incandescent with lens does. One of the GC’s I work for likes to push recessed in fluorescent’s in the kitchen for energy saving and heat issues and so far all the customers have been happy with the end results.
Curt