... assembled by the following part:1, 0550R24L: 50 mm, red light modular, 24 VDC , Continuous lightening;2, 0550Y24L: 50 mm, ... : 50 mm, green light modular, 24 VDC , Continuous lightening;4, 0550Z24FB : 50 mm, 100 dB buzzer, 24VDC, Intermittent mode, black;5, 0550TBS25B ... : 50 mm, S type 250 mm stand , black EMA 50mm Multi-Layer LED Light Tower