The CR1100 is a 1-2 mile LED self-contained marine beacon which contains a solar panel and battery. It is compact, robust and economical. A sealed ON/OFF switch on the bottom allows for easy operation. It provides a daylight control sensor for night time operation to save energy, a 60 flash per minute flash rhythm of 0.3 second ON and 0.7 second OFF, and a solar charge controller circuit to optimally charge the battery. Its battery and solar panel are high capacity for its class. Conforms to 33 CFR 66 and 67 and is certified for use in Class C locations in the Gulf of Mexico.