24VDC signal lamp with second wall arm/180° swiveling, 50mm diameter, colors: red / yellow / green Tone: buzzers can be controlled individually via the purple control line, 24V DC power supply includedATTENTION: The lamp flashes in the respective color - flash -Light. A 4-port relay, e.g. ALL4427 or ALL3527, is required to operate this signal flashing light. One relay output per color. This means you can control each individual color “RGB < Buzzer”.