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<p><span style="font-size: 18px; font-family: TrebuchetMS; color: rgb(36, 27, 31);">Useful for studies of fundamental principles of optics using ray tracing technique. Comprises a well painted, die-cast metal box with an enclosure that houses electric bulb for use as a light-source in the experiments. Open front of the bulb enclosure with holes all around the bulb holder and extended side-fins on the outside of the enclosure assist in the heat dissipation of the bulb. The integral side-rails provided with a set of vertical-grooves on inner side for accommodating various 45mm wide mountings such as slit plate and cylindrical lens. The 12V bulb with vertically straight filament, mounted in SBC bulb holder with a two core flexible connecting lead terminating in a pair of 4mm banana plugs for connecting it to low voltage AC power source. Additional slots permit the mounting of other accessories or components such as color filters for added experiments in ray optics. Supplied complete with slit plate, double ended single/triple but without collimating lens. </span></p>
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