I will let the experts correct me if I am wrong and of course Memphislights is correct in what a wall wart is, But before you order a wall wart. To do what you are trying to do, I don’t believe you will need one(other then the one that will come with the transmitter parts)
If you want to connect a Lynx Express V3 that was the LE/RE wireless receiver module installed, to a Lynx Express that does not have a the wireless module. Then you would only need to run cat 5 from the DMX 2 out of the LE with wireless to the DMX in on the LE that does not have wireless.
If I understand what you want to do and how all this works it would be like this
----- inside house (usually) ------
Pc -> Dongle -> Transmitter (with included wall wart)
----- outside house (usually) ------
LE V3 #1 (with wireless module ) -- (cat5) -- LE (with OUT wireless module ) -- (cat5) -- LE (with OUT wireless module )
LE V3 #2 (with wireless module ) -- (cat5) -- LE (with OUT wireless module ) -- (cat5) -- LE (with OUT wireless module )
LE V3 #3 (with wireless module ) -- (cat5) -- LE (with OUT wireless module ) -- (cat5) -- LE (with OUT wireless module )
Refer to the lower left corner of the First sample diagram.
Someone please correct me if I am wrong.
Jeff