This Norelco brand projector lamp is the perfect replacement for your CDS CDK projector. With 120V voltage and 100W power, it provides bright and clear projection for your slides and movies. Compatible with a range of brands including RCA, Singer, Bogen, Sawyer, Keystone, Argus, Sawyers, and Graflex, this lamp bulb is a versatile choice for all your film photography and projection needs.