Multiple color LED steady/flashing Economical tower light model that can deliver two to three signals with one layer Long product lifetime of over 20,000 hours with the application of a high intensity multiple color LED light source Customized 2 buzzer sound type available Special light filter structure provides clear signal light transmission Standard type-IP44, Built-in buzzer type-IP23 Built-in buzzer type available (Volume : Max. 90dB at 1m)