Light or Dark? High quality and durable kit designed for teachers, by teachers. Covers reflection, refraction, colour mixing, absorption, focal length measurements, ray optics and principle of fibre optics. Includes innovative ray box that accommodates individual slits, colour mixing slides and a collimating lens. Light kit includes a teachers manual with multiple experiments. Includes: 1 Amber Perspex Strip 1 Black Perspex Strip 1 Bulb 12V 1 Clear Perspex Strip 1 Concave Lens 1 Convex Lens 10 Colour Filters 1 Gate Single White 1 Gate Double White 1 Gate Triple White 1 Gate with Triple Colour Filter 1 Gate Wide White 1 Mirror Small Chrome 1 Mirror Small Glass 1 Multiple Reflection Strip 1 Equilateral Prism Perspex 1 Isosceles Prism Perspex 1 Rectangular Prism Perspex 1 Semi Circular Prism Perspex 1 Long Mirror with “V” Notch 1 Protractor Round 1 Raybox, Lens & Holder 1 Rectangular Trough 1 Scale & Colour Strip 1 Raybox Bracket: to be used by 12V Bulb 1 Manual - Light Kit