The Gama Sonic GS-61R Sol-Gate solar-charged flashing warning light for barriers and gates helps to enhance safety and security with its flashing red LED lights. The Sol-Gate makes the barrier or gate to which it is attached more visible in the dark to drivers, bikers and pedestrians. The GS-61R model mounts in just seconds over a rounded surface with only four screws required--no electrical wiring necessary. It has an auto on/off sensor. In darkened conditions, the unit flashes its two red LED lights at 100 millisecond flashing per second and works in the vertical or horizontal position. A full solar charge of the two included rechargeable AAA Ni-Mh batteries provides up to 200 hours of functionality. With its polycarbonate frame and rubber-sealing end caps and UV inhibitor, the Sol-Gate is weatherproof and built to last.