Roho Quadtro Select Cushion 15 x 18 x 4.25 Pulse Monitor 5v Halogen Lamp * Lightweight MSHQ 1594XL 5v Halogen Lamp * Lightweight and compact * 5 aperture selections for general and specialist use * 48 lenses for better resolution * Polarized filter reduces corneal reflection * 12 aperture filter combinations: micro small and large spot sizes cobalt blue filter for corneal exams fixation target and slit aperture red free filter and unfiltered halogen 6 kg) * Motor 120 VAC 60Hz 5 Amps * 1 5 Horsepower * Operating temperature range 50¯F to 104¯F (10¯C to 40¯C) * Storage conditions Temperature: 4¯F to 104¯F ( 20¯C to 40¯C) * Humidity: Max 95% non condensing Cushion includes cover pump repair kit and operating instructions * Cushion is 8 cells wide x 10 cells deep * 3 year limited warranty