Start up - light block signal Märklin H0 74391

Simple block signal for use on the route. Change from Hp0 (red) to Hp1 (green). Control of the traction current via control panel 72751. Maintenance-free LED. Height without base approx. 78 mm. Matching control panel 72751. The signal 74391 cannot be switched with other control panels!

Can also be used in digital operation with the decoder m84 (60842).