The series 500 is our Lantern for vessels under 50 meter in length. The housing is made of strong, glass fiber reinforced polyamid. All screens are made of stainless steel (1.4571). Our series 500 can be equipped with 12V and 24V bulbs. Quality "made in Germany". It also has the follwing advantages: - shock resistant - non corrosive - non magnetic - seawater resistant - waterproof according to IP 56 Our light series 500 have got the following approvals: BSH, GL, UL 1104, MED (Wheelmark).