Bring Your Fly to Life!

With UV and Visible Light Radiance

Catch Bigger Fish and More Fish

In water, visible light is often diffused and the vibrant colors of your fly become dull, lifeless shades of gray.

With intense visual effects that trigger strikes, Spectrum Response is a revolutionary hyperspectral fly treatment that increases fly visibility, giving radiant energy to every fly type in all lighting and water conditions; helping you attract and catch more fish and the wariest of big fish.

How Does it Work?

Using Quantum Optics² Technology, Spectrum Response causes the treated materials of the fly to absorb radiation in the ultraviolet region of the electromagnetic spectrum, and re-emit light in the ultraviolet and visible regions of the spectrum, giving your fly vibrant, radiant color and the appearance of life.

Features and Benefits

✓ Amplifies the radiance of light emitted from the fly
✓ Emits light across the ultraviolet and the visible light spectrums
✓ Treats freshwater and saltwater flies of all types
✓ Hydrophobic formula provides lasting effect
✓ Will not bind materials or hinder action
✓ Fast and simple to apply. Dries quickly
✓ Non-toxic to the environment