57-4 railway mobile signal light instead of guiding way of the train operation by worker riding in the front , play a big role in railway directives, and has been in use today.
57-4 railway mobile signal light adopts parabolic reflector system, has the characteristics of the condenser, distanced
display .
Selects the color ball type and tooth type color system combined pull (institutions), throw flexible positioning accurately, with functions of prevent "false" display. Top and bottom isolated, can reduce mirror and operators by corrosion acid gas .Equipped with light bulbs, in case of urgent need.
Material: plastic
Reasonable structure, flexible chromaticity, pure color ;
Show distance greater than 1250m
Applicable temperature:-40~50℃ ;
Color changing institutions life is more than 21000 times ;
Light colors (red, yellow, and green) are in the hand light chromaticity coordinate optimization area;
The weight is less than 1.2 kg (with battery) increasing train speed.