Versatile light/ray box with hinged mirrors & 29 optical components make it the most comprehensive kit available for demonstrating geometrical optics & the study of light to physics students Includes a high quality ray/light box with a bright halogen lamp providing divergent and parallel beams & hinged mirrors for color mixing experments Includes comprehensive instruction guide with 18 activities Components include: (1) light/ray box with hinged mirrors, (1) lamp holder, (2) 12V, 20W bulbs, (2) 4mm banana plug leads, (2) slit plates, (8) acrylic prisms & lenses, (3) mirrors, (8) color filters, (8) color cards, (1) manual 12V DC power supply required for ray box. Ruler, protractor, and paper required for activities This comprehensive kit with light/ray box and 29 optical components is ideal for performing a large variety of reflection, refraction, and color mixing experiments. The light/ray box consists of a 12V, 24A halogen lamp producing convergent, divergent or parallel beams. One end contains an adjustable cylindrical convex lens (for parallel beam), and on the other end a triple aperture system for color mixing experiments (lateral aperture is provided with adjustable hinged mirror). All apertures in the box are provided with vertical channels to hold slit plates and color filters. Kit comes with a comprehensive instruction guide with 18 activities Included in Kit: (1) Light/Ray box with hinged mirrors, (1) Lamp holder, (2) 12V (20W) bulbs, (2) 4mm banana plug leads, (2) Slit plates, (8) Mounted color filters, (8) Color cards, (1) Rectangular prism, (1) 45/45/90 prism, (1) Equilateral prism, (1) 30/60/90 triangular prism, (1) Semicircular prim, (1) Bi-concave lens, (2) Bi-Convex lens, (1) Plane mirror on stand, (1) Parabolic mirror, (1) Semi-circular mirror, (1) Semi-circular Dish, (1) Manual Required but not supplied: 12V power supply for ray box; ruler, protractor, and paper for activities