Wide application: red and green boat lights are suitable for boats, kayaks, sailboats, pontoons, and cargo ships; these lights help ensure safe navigation during operation Simple installation: LED kayak navigation lights feature a flexible silicone shell and dual hooks for easy hanging; installation requires no tools and can be completed quickly 3 modes to adjust: boat lights offer three lighting modes to meet various needs; suitable for regular use and can serve as a warning signal in adverse weather conditions Material: LED kayak navigation lights are constructed from durable silicone; designed for long-term use; batteries provide up to 48 hours of continuous illumination in constant lighting mode Package includes: 2 red boat lights, 2 green boat lights, and 5 CR2032 button cell batteries; a practical set for convenient use and replacement