TL50GRWWWQ,TL50 TOWER LIGHT: 5-COLOR INDICA
TL50GRY,TOWER LIGHT: 3-COLOR INDICATOR;
TL50GRYA,TOWER LIGHT: 3-COLOR INDICATOR;
TL50GRYALSQ,TL50 TOWER LIGHT: 3-COLOR SEALED
TL50GRYAOSIQ,TOWER LIGHT: 3-COLOR SEALEDO
TL50GRYAQ,COMPLETE UNIT GRN/RED/YEL
TL50GRYB,TOWER LIGHT: 4-COLOR INDICATOR;
TL50GRYBA,TL50 TOWER LIGHT: 4-COLOR AUDIBL