175 Metal Halide socket, wires, ballast, and used 14,000K bulb. I think I have an extra used bulb you can have with it also. Inside is clean and in good shape. I sanded the outside of any rust and repainted it real nice. $50. Will ship at buyers expense. Will also trade for corals. I like zoo's, but just upgraded to halides. I would prefer something suited to a noob, as I am still learning, but open to trades also. This is the "good" light from the retrofit kit that I bought. Nothing wrong with this one, and wiring looks good, new looking capacitor also.