... , 0550R24L: 50 mm, red light modular, 24 VDC , Continuous lightening;2, 0550Y24L: 50 mm, yellow light modular, 24 VDC , Continuous lightening;3, 0550G24L: 50 ... mm, green light modular, 24 VDC , Continuous lightening;4, 0550Z24FB : 50 ... type 250 mm stand , black. EMA 50/70mm Multi-Layer Light Tower (led light tower)