Thermoplastic molding compositions, processes for making the same and articles made therewith are described wherein the compositions include at least one stabilizer comprising one or more polyisocyanates having an average of 2 to 10 isocyanate groups per molecule, wherein at least one active ingredient group is coupled to the one or more polyisocyanates in an amount of 0. The second member contains a hollow interior and is slightly larger than the first member so that the first member can be inserted inside the hollow interior. The device further comprises emitters associated with the base plate and phosphor associated with the face plate.