The Guardian warning light is a safety must. It offers approximately 150 hours of operation with one battery - Bulb lifetime up to 100,000 hours. Extremely impact resistant, the light is visible from all sides and can be seen for over 5km. It’s submersible up to 100 meters and resists temperatures between -40 ° C to +50 ° C. Lightweight, this warning light comes with a clip and includes a locking belt clip that can be attached to a dog harness or collar.