Optical fiber traffic signal lamp

The utility model discloses an optical fiber traffic signal lamp, including the standpipe, the through -hole has been seted up on the surface of standpipe, branch fixedly connected with solar cell panel is passed through at the top of standpipe, the surface of standpipe is provided with clamping device, clamping device includes a clamp ring and the 2nd clamp ring, the standpipe lies in between a clamp ring and the 2nd clamp ring, the 2nd clamp ring's top fixedly connected with nut, a clamp ring's bottom is run through and is provided with the bolt, the top of bolt is run through a clamp ring, through -hole, the 2nd clamp ring and nut in proper order and is extended to the top of nut. The utility model discloses power supply switching circuit changes the power supply line of luminous body, converts mains power supply into, has avoided that battery voltage is low excessively to cause the luminous body harm, protects the luminous body, can utilize solar energy to supply power to the luminous body again daytime s