This lamp bulb is a perfect replacement for your CZA or CZB projector. It has a voltage of 120V and a power output of 500w, ensuring bright and clear projections. The bulb is manufactured by GE, a trusted brand in the industry. It is compatible with a wide range of brands including GAF, Atlas, Mast, Viewlex, Apollo, Keystone, Bauch and Lomb, Warner, Sawyers, Mansfield, Rand, Elmo, 3M, Singer, Airequipt, and Bell + Howell. This makes it a versatile option for any user looking to replace their old bulb. Upgrade your projector equipment today with this reliable and efficient lamp bulb.