Glow vs. UV Fishing Lures - The Difference Explained

I get a lot of questions from anglers asking why their new UV lures "don't glow in the dark." To clear up the confusion, here is a quick breakdown of the key differences between Glow and UV tackle, how each technology works, and when to fish them.

Quick Summary: Glow vs. UV Lures

• Glow Lures (Phosphorescent): EMIT THEIR OWN LIGHT by storing energy from an external light source (like a UV flashlight or sunlight). They are visible in pitch-black conditions.
• UV Lures (Ultraviolet): DO NOT EMIT THEIR OWN LIGHT. Instead, they reflect invisible UV light present in the water column, making colors appear dramatically brighter (compared to non-UV colors) in low-light or stained water. They are NOT visible in pitch-black conditions.

Glow (Phosphorescent / Glow-in-the-Dark)

How it works: Glow pigments act kinda like a light-absorbing sponge. They absorb photons from ambient light, store that energy, and slowly re-emit it over time.

Light Source Required? Only for the initial charge. Once charged, a glow lure emits its own light—even in pitch-black conditions.

Best used in: Early morning, late evening, stained water, and even total darkness...such as deep-water Great Lakes trolling, low-light ice fishing, or night fishing.

UV (Ultraviolet / Fluorescent)

How it works: UV finishes and fluorescent paints absorb invisible ultraviolet light (from sunlight or a blacklight/UV torch) and instantly convert it into visible light, making colors "pop" and appear far more vivid underwater.

Light Source Required? Yes, constantly. UV coatings do not store light. They only reflect and illuminate when active UV light rays hit them.

Best used in: Daylight, overcast conditions, murky water, or deep water where natural sunlight still penetrates (UV rays penetrate deeper into the water column than visible light rays).

Key Takeaway for Anglers

If you charge a lure with a flashlight, turn off the lights, and it stays bright in your hands- it's Glow. If it brightens up under a UV light but goes completely dark as soon as you turn the light off- it's UV.  In the image of the Bloody Zombie spoon 'flower' above, you can see this difference in action: the glow eyes and bodies continue emitting light in the darkened bottom portion of the pic, while the UV reflective Hot Red noses pop in the lit area above. If the light was turned off...the red areas would disappear.  Both Glow and UV finishes are incredibly useful on fishing lures, and leveraging both is key to increasing lure visibility in low-light conditions.