S6LS CLEAR WHITE 2NM IP67 SOLAR STEADY-ON LED Marina Dock Barge Boat Safety Beacon Light Solar Warning Lamp - Solar Marine Light  Water Channel Marker Automated On/Off Photocell Switch make the Light Dusk On - Dawn Off Steady-On Non-Flashing 6 Super Bright LEDs Weatherproof Design Minimum Autonomy: 60+hrs Run Time on Full Charge