Fenix Red Filter for all models starting with TK - TK11, TK12 and TK15
Filters the light from the flashlight, allowing only red light to shine.
Uses toughened ultra-clear glass lens with anti-reflective coating that provides heat resistance and maximum lite transmission
Made from PC 2805 plastic created by Bayer MaterialScience AG, works great for anti-aging, anti-press and anti-impact
39.7mm diameter, 25mm height
High temperature resistance & good heat stability
Easy to add to or remove from the flashlight
DOES NOT FIT FENIX TK21