You are going to have to take a look at each light fixture to determine what you will need and what will fit. LED replacements are a can of worms and will require a little home work. I am not familiar with your rig but I would guess that there are several styles of bulb base used. Could be a "wedge base" that simply pushes in, some have two straight wires that push in the socket, some have a bayonet base, push in and twist, with two opposing pins on the base, take note that some bayonet bases have the pins horizontally opposed and others are offset opposed depending on the contacts on the bottom. Some bayonet bases have a single contact on the bottom, others may have 2 contact surfaces on the bottom. There a couple other styles I haven't described. I replaced all the halogen bulbs in the last TT I owned and used 3 different style bases on the interior lights (wedge base and 2 different styles of bayonet base) and 2 styles on the exterior (marker lights and Stop/Turn/Run).
I bought all the lights on Ebay and patiently shopped for the right prices. Get at least 200 Lumens (more is better). Colors will vary also so google led colors to determine what suits you best. Naturally you don't want blue and possibly red for the Stop/Turn lights. "Cool white" seems to fairly popular but may have a slight blue tint. The brake/turn bulbs need to be at least 500 lumens.
My 2014 Palomino Puma 25RS has all LED interior lamps already installed and the one over the galley sink has a high/low brightness. I'll eventually get around to replacing the exterior bulbs a little later.
Good luck, when you get through you will be a lot smarter about LED's.
2014 Palomino Puma 25RS
2011 F-150 Super Crew XLT
Days camped in 2014 - 23
Camped 2015 - 47
Camped 2016 - 51 done - 6 more planned so far