Mini Ray Box STEM Lab
Product Code : SCL-OS-12491
Quick Answer: The Mini Ray Box STEM Lab is a compact 3W LED light source for ray optics, with a reversible slit plate giving 1, 3 or 5 rays and a magnetic base for whiteboards and optical benches. It measures 11.5 cm x 6.5 cm x 4.5 cm.
Last updated: October 2026
Key Features
- 3W cool white LED, 280 lumens
- Reversible dual-sided slit plate for 1-slit, 3-slit and 5-slit outputs
- Magnetic strips under the ABS housing for steel whiteboards and optical benches
- Powered by 5V DC through a USB type-C cable (included) or by 3 AAA cells in the built-in slot
- Supplied with red, green and blue filter slides, a plano-convex acrylic lens and an equilateral acrylic prism
Technical Specifications
| Specification | Value |
|---|---|
| Light source | 3W cool white LED |
| Luminous flux | 280 lumens |
| Slit plate | Reversible, 1-slit / 3-slit / 5-slit |
| Housing | ABS with magnetic base strips |
| USB power | 5V DC, type-C cable included |
| Battery slot | 3x AAA |
| Accessories | 3 colour filters (red, green, blue), 1 plano-convex acrylic lens, 1 equilateral acrylic prism |
| Dimensions (L x W x H) | 11.5 cm x 6.5 cm x 4.5 cm |
About This Product
A single ray is used for measuring angles of incidence and reflection with mirrors and for following refraction and total internal reflection in the prism, while 3 or 5 parallel rays show a lens bringing light to a focus. Stacking the red, green and blue filters introduces additive colour mixing, and because the beams are bright enough for normal room light, the box can be stuck to a whiteboard for the whole class to see.
Frequently Asked Questions
How many rays can the Mini Ray Box STEM Lab produce?
The reversible slit plate gives a single ray, 3 parallel rays or 5 parallel rays.
What accessories are included?
Red, green and blue filter slides, a plano-convex acrylic lens, an equilateral acrylic prism and a USB type-C cable.
Related: Optical Sectional, Laser Ray Box and Mini Telescope STEM Lab.
For a quotation on the Mini Ray Box STEM Lab, contact Educational Instrument.
