Feature:1. Made of high-quality silica gel and gel, it has good water resistance and flexibility.2. It can work normally in the environment of -20C to 50C, and the application range is wider.3. Equipped with a hook and loop surface, you can stick it on the molle helmet, bicycle seat or hang it on the neck or backpack with the rope.4. It can also be used as a recognition light, with two operating modes, always on and flashing.5. An essential item for your outdoor activities, such as cycling, hiking, hunting, diving, etc.Specification:Item Type: Helmet Safety LightMaterial: SiliconeProduct Weight: Approx. 35g / 1.2ozBattery: Built-in 1 x CR2032 button battery, 240mAh (built-in battery)Application: The LED signal light that can be attached to any flat surface and is generally suitable for the surface of the molle helmet. It has the functions of identifying friend or foe and sending out light source for signal communication..Package List:1 x Signal Light1 x Rope Note:The battery can be replaced after use, but it is inevitable to cut the silica gel for replacement, which will lose the waterproof package, and pay attention to the need to wrap the edge of the battery to avoid contact between the positive and negative electrodes.