MS104R43NECLEDX1 is a direct replacement for all 10.4 NEC LCD screens that has 640X480 resolutions with TTL interface(All compatible model are listed below). It has upgraded to our Sunlight readable UB54 Series LED kit. MS104R43NECLEDX1 also comes with a small, compact LED driver MS610UB, it could be mount anywhere on back of LCD screen or on the chassis. To fire up LED backlight, All you need to do it apply +12V (+12V to + 24V DC) to Red wires and Negative (Ground) to Black wires. That’s it. It is easy to install. Anyone can do it!