Complete demonstration for colors and LED properties.

• Series of ten single-color LED’s cover the visible spectrum, plus one 'white' wide spectrum LED
• Each LED can be selected individually, or all together
• Demonstrates the color-wavelength relationship

The vertically-aligned set of LEDs make an easy and dramatic demonstration of the relationship between the color and wavelength of light. The spectral range of each LED can be investigated with a spectrometer, or just viewed for comparisons with each other and with the 'white' LED spectrum.

Each LED can be turned on individually with the rotary switch on the top of the column.