TL50ZGYRBC,TL50 TOWER LIGHT, GRAY HOUSING:
TL50ZGYRBQP,TL50 TOWER LIGHT: 4-COLOR INDICA
TL50ZGYRBW,TOWER LIGHT: 5-COLOR INDICATOR;
TL50ZGYRC,TL50 TOWER LIGHT, GRAY HOUSING:
TL50ZGYRQP,TL50 TOWER LIGHT: 3-COLOR INDICA
TL50ZGYRW,TOWER LIGHT: 4-COLOR INDICATOR;
TL50ZMOBYG,TOWER LIGHT: 5-COLOR INDICATOR;
TL50ZMYG,TL50 TOWER LIGHT: 3-COLOR INDICA
