Economical laser pointer, are useful for many optical experiments, Lasers operate on a push-button switch, are housed in a rubberized aluminum pen-style case, and include a pocket clip. Also includes a proprietary clip that is designed to hold laser button during experiments
Ray Box, Includes: (1) Ray Box, (2) Meter Of Flex, (2) 4mm Plugs, (1) 12V - 24W B15 Bulb, (1) Bulb Holder, (1) Slit Plate, (2) Aluminium Blanking Plates, Traditional Ray Box Has Three Openings, Two Of Which Can Be Used Simultaneously By Two Sets Of Pupils
Laser Diffraction Kit, lets students create, view, and measure diffraction and interference patterns, kit includes two laser pointers-red and green - along with a convenient mounting base and a slide set of diffraction objects
Sodium light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 350 lux at 20 cm and more than 90% of the light is concentrated in the doublet at 588.9/589.5 nm. Faint lines of the mercury spectrum are also visible.