This mogul allows you to use LEC (light emitting ceramic) bulbs (also called Ceramic Metal Halide) with a LEC Electronic Ballasts, and connect your ballast to any Shade or Hood you already have! Simply screw this adapter into your existing shade, and you can now run your LEC bulb and LEC ballast without having to replace your shade!
This E39 mogul to PGZX socket adapter is for CMH (ceramic metal halide). It allows an existing single-ended reflector with standard mogul socket to retrofit to the new LEC technology, when used with a proper remote electronic ballast.