Optical Device for Color Demonstration. Color Disk
Product Code : SCL-PL-11849
Optical Device for Color Demonstration. Color Disk (SKU SCL-PL-11849) combines a hand-turned colour disc with a six-LED colour mixer so a teacher can show how white light relates to the colours of the spectrum. It suits light and colour lessons in middle and secondary school science and introductory physics. Made by Science Lab Supplies at its factory on Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, the colour device is quoted without a middleman to schools, colleges, tender contractors and distributors.
Specifications
The colour disc, its stand and the LED mixer each have their own rows in the table below. In short, a 200 mm disc with two sets of spectral colours turns on a hand-driven rotor above a 120 x 120 mm base, while a control box drives six LED bulbs in a circular frame.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11849 |
| Disc | Coloured disc, used to decompose white light |
| Disc diameter | 200 mm |
| Disc colours | Two sets of spectral colours |
| Drive | Rotor with a rotating handle |
| Handle axis | Matches the axis of the disc |
| Base | Plastic, 120 x 120 mm |
| Feet | Rubber pins |
| Total height | 32 cm |
| Mixer control | Colour mixer control box |
| Light sources | Six LED bulbs |
| LED mounting | Circular frame |
| Power | Power adapter |
| Documentation | Instruction manual |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Color Disk
Spinning the disc with the handle blends its spectral sectors so the eye sees them merge towards white, the classic Newton's colour disc effect. The LED unit adds colour mixing with light sources, giving a class two complementary views of how colour works in school science.
- Class 7–10 science: white light as a mixture of the spectral colours.
- Persistence of vision when the disc is spun quickly, a step towards the moving pictures of the Phenakistoscope Model Demonstrate.
- Mixing coloured light with the six-LED unit and control box.
- Introductory physics demonstrations on dispersion and colour, splitting white light first with a Glass Prism (Equilateral, 50 × 50 mm) and then recombining it on the disc.
Standard Scope of Supply
Supplied with the mixer control box, power adapter, six LED bulbs, circular frame, the 200 mm colour disc, the rotor with its handle, the plastic base with rubber pins, and an instruction manual, so both the disc and LED demonstrations are covered.
Packing, MOQ and Lead Time
Request a price for a single device or for a set for every science room; the quotation covers packing, delivery time and price for that quantity. Filters, ray boxes or other physics lab equipment in India from the same range can share the quotation.
With an Importer-Exporter Code on record as a registered exporter, Science Lab Supplies can ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia. To price the colour disk, use the contact page for a direct message, keep a list of light items in the enquiry cart, or see the lab tender page when the order goes through a tender.
Frequently Asked Questions
How is the colour disc turned?
By hand. The disc sits on a rotor with a handle on the same axis, so a steady turn of the handle spins it fast enough for the colours to blend.
What does the LED part of the device do?
Six LED bulbs in a circular frame are driven from the mixer control box and powered by the included adapter, for demonstrations of mixing coloured light.
Is Science Lab Supplies the manufacturer or a trader?
This colour device is manufactured, not traded: Science Lab Supplies produces the disc, stand and LED mixer at its Saha factory in Ambala, India, and prices each quotation itself instead of reselling another maker's product.
How large is the device?
It stands 32 cm tall on a 120 x 120 mm plastic base fitted with rubber pins, and the colour disc itself is 200 mm in diameter, carrying two sets of spectral colours.
Related Light and Colour Apparatus
These Physics Lab items continue the colour lesson: two further spinning discs, coloured filters, a coloured-shadow unit, a ray box with filters and glass prisms that split white light before the disc recombines it. Any of them can be quoted with this device on one enquiry.
- Newton’s Colour Disc — 180 mm disc on a metal stand, belt-driven from a hand-turned wheel.
- Newton's Disc — removable 150 mm PVC disc turned by a 3–7.2 V DC motor, with safety sockets.
- Color Filter Set — six 8 x 10 in. filters in the primary and secondary colours for additive and subtractive mixing.
- Colour Shadow Apparatus Optics Lab — red, green and blue LEDs with independent dimming controls for coloured shadows.
- Raybox with Accessories — 12 V, 10 W line-filament bulb, slit masks and coloured filters for beams of coloured light.
- Prism Glass — equilateral optical glass prisms in 38 mm and 50 mm sizes for dispersing white light.
Browse the full Physics Lab range, the Light and Optics range for prisms and lenses, or all physics lab equipment.
Last updated: 22 October 2026
