Review on 🖨️ ECHEN Printer Filament 1.75mm: A High-Quality Filament for 3D Printing by Jason Rogness

When the light is off, all three filaments create a very pleasant glow effect. The second photo shows them after charging, but with the lights on. The third photo shows direct sunlight. As you can see, when the light is on, this material appears off-white and somewhat translucent. Every light source I've tried so far has successfully charged the Glow effect, including LEDs, fluorescent, compact fluorescent, incandescent, and especially sunlight and ultraviolet. Brighter light or more UV light charges the material better for a brighter shine. An LED or black light fluorescent lamp is a great way to quickly and fully charge it; and sunlight really works best! Prints easily with my typical PLA settings with no adjustments. Thin walls, bridges and ledges were no problem. N:218 -> 206CB: 60 -> 55CFan: HIGHSpeed: Normal