The Philips M30 ESB Type 7388 6V 20W G4 Halogen Lamps are high-quality, long-lasting bulbs designed for film photography and projector use. Made in Germany by the trusted brand Philips, these lamps are compatible with G4 sockets and provide a bright, clear light output at 6 volts of power. Perfect for creating vivid slides and projections, these halogen lamps are a reliable choice for professionals and enthusiasts in the film and photography industry.