Klein Tools 56063 Rechargeable Safety Lamp with MagnetFocused quad directional multi LED is visible up to 1 4 mile (0. 4 km) in low light and clear weather Four operational modes: Pulse (High), Pulse (Low), Solid On (High), Solid On (Low); Up to 52 hours runtime Designed to attach directly to Klein Hard Hats and Safety Helmets with patent pending front back accessory mounts; no straps needed Attach to magnetic surface to serve as stationary alert beacon Compact and lightweight design for all day use High