Gama Sonic Sol-Gate Solar LED Light Fixture for Gates and Barriers, Right-Angle Mount, Set of 2 #GS-61A Warning light for flat gates and barriers with 2 flashing red LEDs or added visibility, safety and security Automatically turns on at dusk or in darkened conditions and off at dawn or when sunlight returns Full solar charge of two included AAA Ni-Mh batteries provides 200 hours of operation No electrical wiring required for installation--attach with four screws; operates vertically or horizontally Constructed with a weatherproof polycarbonite frame and rubber sealing end caps