I did what you are proposing with the sold Sprinter build. Multiple ceiling lights.
The second build (Transit) I used a different (IMO better) approach.
Decided to install lights directly above the area that needed illumination with switches located where I would be standing when I wanted that illumination. Result was a much better lighting system.
Reused the 4 LED lights that Ford installed in the 148" WB cargo van and added two string LED lights. Disconnected the Ford LED lights from the Ford electrical system and powered them from the house battery.
What I ended up with that works much better than the Sprinter approach:
1. Single Ford LED light above the rear doors with switch next to it. Switch can be used from outside or from the bed platform.
2. Single Ford LED light above the shower with switch high on shower wall.
3. Two Ford LED lights above the sink counter with the switch on forward end of the sink cabinet. This switch can be operated from in front of sink or from outside the slider door.
4. A string of LED lights in the bottom slot of the rear overhead cabinet over the bed platform. Switch is located on bottom of the cabinet and can be reached from either the aisle or when in bed. String under both rear overhead cabinets with switch for each.
No automatic cargo lights when opening a cargo door.
Just a thought.
The second build (Transit) I used a different (IMO better) approach.
Decided to install lights directly above the area that needed illumination with switches located where I would be standing when I wanted that illumination. Result was a much better lighting system.
Reused the 4 LED lights that Ford installed in the 148" WB cargo van and added two string LED lights. Disconnected the Ford LED lights from the Ford electrical system and powered them from the house battery.
What I ended up with that works much better than the Sprinter approach:
1. Single Ford LED light above the rear doors with switch next to it. Switch can be used from outside or from the bed platform.
2. Single Ford LED light above the shower with switch high on shower wall.
3. Two Ford LED lights above the sink counter with the switch on forward end of the sink cabinet. This switch can be operated from in front of sink or from outside the slider door.
4. A string of LED lights in the bottom slot of the rear overhead cabinet over the bed platform. Switch is located on bottom of the cabinet and can be reached from either the aisle or when in bed. String under both rear overhead cabinets with switch for each.
No automatic cargo lights when opening a cargo door.
Just a thought.