Primary Colour Kit STEM Lab
Product Code : SCL-OS-12492
Quick Answer: The Primary Colour Kit is a colour-mixing apparatus with three LED projectors, red, green and blue, mounted on an alignment track. Overlapping the beams on a white screen shows how cyan, magenta, yellow and white light are formed.
Last updated: October 2026
Key Features
- Three LED projectors: red (about 625nm), green (about 525nm) and blue (about 465nm)
- Independent dial controls for fading each colour
- ABS base with linear guide rails for lining up the lenses
- Cyan, magenta and yellow subtractive colour plates
- Shadow casting rod and matte white diffusing screen included
Technical Specifications
| Specification | Value |
|---|---|
| Light sources | 3 LED units: red ~625nm, green ~525nm, blue ~465nm |
| Controls | Independent dial potentiometers |
| Base | ABS base with linear lens guide rails |
| Accessories | 3 subtractive colour plates (cyan, magenta, yellow), 1 shadow casting rod, 1 matte white diffusing screen |
| Dimensions | 29.5 cm x 18.0 cm x 14.5 cm |
About This Product
Students overlap the red, green and blue beams on the screen to see the secondary colours appear and all three combine to white, then turn the dials to blend in-between shades. Putting the cyan, magenta and yellow plates in the light path shows how a filter absorbs some colours and passes others, which links to pigments, printing and screen displays, and the rod casts coloured shadows. Laboratories and colleges in United States, Tajikistan, Lebanon, Syria, Bahrain and Malta can buy the Primary Colour Kit STEM Lab through an export order.
Frequently Asked Questions
What does the shadow casting rod do in the Primary Colour Kit?
Placed in the overlapping beams, it casts separate coloured shadows from each light source, showing which colours combine on the screen.
Which subtractive filters come with the Primary Colour Kit?
Three colour plates: cyan, magenta and yellow.
Related: Optical Sectional and Light and Optics Demo Kit STEM Lab.
For a quotation on the Primary Colour Kit STEM Lab, contact Educational Instrument.
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