The Osram 64634 HLX EFR 15V 150W Xenophot Halogen Photo Optic Lamp GZ6.35 is a high-quality lamp bulb designed for movie projectors. With its 150W power output and halogen feature, this lamp provides bright and clear projection for a variety of movie photography and film photography purposes. The lamp is compatible with universal projector brands and comes as a single unit, making it a reliable and efficient choice for enhancing your slide and movie projection experience.