Ed & I had a few lights that were out in the ceiling area. They are in the ROUND tubing. We were at COACHWORX at the time and Ben sold us the individual bulbs for replacement. You have to "sauder" sp.? them to the others. 12Volt. Only sporadicly were burnt out bulbs. Don't know if the SQUARE tubing bulbs are the same. They aren't cheap to buy. Of course, what is cheap on a PREVOST !!!
Sandy