An adaptor or an original lamp. The adaptor is used with a lamp having a light bulb to better mount a loop-type lamp shade thereon. The adaptor has a harp assembly with harp sections that extend from a mounting ring or collar that fits about the head of the lamp. The collar can be eliminated when the apparatus is built in to the lamp head during manufacture. The adapter allows support of the lamp shade by both the loops and using a harp to thus reduce tilting or other disorientation of the lamp shade.