The Fenix AOD-S V2.0 is a mini diffuser tip that can transform your Fenix light into a reading, signal, or emergency light. It is compatible with light head diameters of 21/ 21.5/ 24/ 25.4/ 26.5mm. The design of the tip allows it to stand on any flat surface. Made of high-quality PC materials, it can securely be attached to the light in a flash. Moreover, it is durable, impact-resistant, high-temperature resistant, and designed for field use.