3 Pack Red Green Blue Light Bright Small Flashlights, LED Mini Flashlight High Lumens Pen Light with 3 Modes, Zoomable Torch with Clip, Flashlight for Camping,Outdoor,Emergency

These do the job perfectly! I got them to show my science students how light mixes and creates complimentary colors. These are bright and sturdy! Glad I got them.

I used these in my Physics class to show the energy and combinations of the wavelengths of different colors of light. These arrived quickly and worked perfectly, without the eye hazards that come with colored lasers.

Good lights but you get what you pay for. If you just want colored light, these are great. The colors are accurate but not strong enough to create white light when overlapped, so they are not great for the science experiments that I wanted to do with them

Bought these for some science demonstrations and they work great! The have a solid light function, a low light function, and a strobe function (don't really need that but whatever). Good solid construction, and I'll buy these again if needed

Important for buyers to note that each flashlight is a different colored light (one red, one green, one violet), and not 3 colors on each light, and there is no ‘normal’ white/warm white light mode. Otherwise, good small size and seems pretty sturdy.

Excellent tool for teaching about light and wavelength. And the strobe effect is fun for a mini dance party when you're done teaching.

Really nice quality. They do not come with a battery. The color is bright, and accurate. Would definitely recommend

Practical application works very well. All three of them have a very intended use.

High brightness and good quality

Working as described. Mixes nicely to white light when overlapping...

Las compré para hacer experimentos para mis alumnos de la teoría del color y funcionaron super bien

Great for demonstrating colour addition theory. Overlap the beams to get cyan, magenta, yellow, and white. Used them for my science class.