This Experiment Kit is designed to complement the LED.white, and contains everything you need to carry out a variety of experiments around optics. The Experimental Guide outlines a number of activities, including recreating Newton's famous experiments with white and coloured light. The kit comprises:. 5 x Slit plates, with holders. 5 x Collimating lenses (50mm, 7D plano-cylindrical). 2 x Spectrometer prisms (optically polished, extra dense flint glass). Mounting rod to enable use with the optics benches. Experimental guide. The LED.white by Unilab is available to purchase separately (B8L87348).