The Lowenstein Power Supply for PrismaLINE Touch Screen series converts AC to DC for Prisma devices like Prisma20C/A, Prisma25S/ST, PrismaCR, and PrismaLAB, excluding Prisma SMART & SOFT models. Dimensions are 144mm x 70mm x 40mm with a 1-meter lead. It's a replacement for Prisma Series CPAPs, ensuring their reliable operation. Not suitable for Prisma SMART & SOFT, and their max versions.