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Light Blox - LED color mixing educational kit

Light Blox - LED color mixing educational kit

16 total reviews

Regular price $29.95
Regular price Sale price $29.95
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Bright, beautiful, classroom LED light sources! Safe LEDs in the three primary colors of light (red, green, and blue) for exploring optics, color mixing, and more!

Lenses, mirrors, and diffraction gratings are only included with the Tech Light Lab kit.

Contact us for bulk orders of 25 or more!

  • Batteries Included
  • Hours of lessons emailed after order
  • For Grades 3-12 - Aligns to NGSS Standard PS4.B
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Aligns to NGSS Standards

Light Blox enable safe hands-on learning with light and optics

Finally, hands-on color-mixing with light

The primary colors of light – red, green and blue - are not like the primary colors of pigments. When you mix all of the colors of paint, you get a mess – but when you mix the three primary colors of light, you get white light.

With the caps off, these classroom LEDs are perfect for creating the secondary colors of light (yellow, magenta and cyan) with additive color mixing. Or, mix all 3 for white light.

Perfect classroom tool for Reflection and Refraction

With the caps on, LightBlox double as a ray box! They project an easy-to-see beam in each of the primary colors of light (red, green, and blue), perfect for exploring how light bounces (reflects) and bends (refracts).

Students easily and intuitively uncover the law of reflection or measure the angle of refraction.

Explore, inquire and observe all the properties of light with one simple tool - no expensive equipment needed. Make the science of light and optics fun and accessible for students in grades 3-12!

Free lessons and activities included for mastering light

Light is a visually engaging and fun topic for kids and adults, but it can be abstract and difficult to teach also – so we’ve created dozens of labs, experiments, lessons and activities for mixing primary colors of light, reflection, refraction and more with LightBlox. Available for download in your order confirmation.

The Easy Way to Learn About Light


light blox LED primary colors mixing reflection classroom learning  kit


Explore how light bounces in reflection with mirrors and other shiny surfaces.

refraction and reflection diy educational lesson


Learn why lenses bend light to form images in eyes, microscopes and telescopes.

Color Mixing

Blend your own color combinations to make new colors of light!

Customer Reviews

Based on 16 reviews
Suzanne Shera
Very versatile

They are one of the best colored light sources I have owned! The removable slits produce a narrow beam that are useful for reflection and refraction experiments.

I use them for my Color Theory workshops and Physics classes for homeschoolers. I also bring them along when I travel to conferences with my book Lightlab.

Wendy Laurin
great product

I have several sets of the light blox for the classroom. We make the room dark and use them to explore color mixing and shadows. We also use them to analyze how items reflect light like M&Ms. It is part of the section on color mixing. Students are used to red blue and yellow so doing this really makes them think how they see color. We tie it in with how the eye works. It is one of their favorite labs (high school, college and STEM days.

Karen Mattick
Great middle school tool

I darken the classroom, lay white butcher paper on the lab tables, and put up cardboard “screens.” With the lights out, I walk around handing student teams one tool at a time: Light blox without their caps, one color at a time, then the caps, then lenses, then the half circle empty and with water, and finally mirrors. The students enthusiastically explore many light phenomena. Once that free exploration has happened, then I guide specific explorations of color, refraction and reflection. The students love the tools. And the blox and accessories work to teach the science.

Donna Barton
Great Hands-On Learning tool

My 6th grade students completed the Khan Academy Pixar in a Box unit on Color Science with lessons on RGB pixels, HSL and how we perceive light. The Light Bloxs provided some great hands-on learning to see the application of color mixing and light bending through the use of lenses.

Sandra W.
Perfect for Our Project!

Our class was doing reflection and refraction labs and these lights have a cap that makes a "slit" that worked perfectly. Way better than flashlights and tape, which are a nightmare. I am ordering more!

Frequently Asked Questions

How do I order with a tax-exempt certificate?

We only automatically charge tax to shipping addresses in Ohio. If you're in Ohio, please email us your tax exempt certificate with purchasing email you'll use. We will keep it on file and mark your purchasing email as tax exempt. Then you can place your order normally without being charged taxes.

If you're outside of Ohio, you can go ahead and order now without being taxed. Then, go ahead and email us your certificate so we can mark your account. If we expand in the future, we may eventually charge taxes in your state.

How do I order using a Purchase Order and Invoice?

We'll need to set up a custom order for you and mark it for payment due later. Please email us to receive a quote that includes shipping and taxes. Then, email us your PO. After shipping, we'll email you the invoice with payment details. Please note that if we do not have an existing relationship with your institution, we may require payment before shipping to reduce our risk of fraudulent orders.

Do you offer classroom discounts?

We offer discounts on most products for orders of more than 10 of any one item. Another price decrease is available at 25 pieces - typically what's needed for a classroom. If you are interested in those quantities, please email us and include your item and quantity details for a quote.