... , Continuous lightening;2, 0550Y24L: 50 mm, yellow light modular, 24 VDC , Continuous lightening;3, 0550G24L: 50 mm, green light modular, 24 VDC , Continuous lightening ... , 0550Z24FB : 50 mm, 100 dB buzzer, 24VDC, Intermittent mode, black;5, 0550TBS25B: 50 mm, S type 250 mm stand , black. EMA 50/70mm Multi-Layer Light Tower (led light tower)