300-039 black double steaming light V 5 NM 0. The configuration follows the application identified in the product name. Article 186839Z. Visibility: 5 NM. Vertical mounting. Lopolight LED navigation light with IP68 protection and 10–32 VDC supply, intended for marine navigation in accordance with COLREG72. The standard housing uses anodized aluminum with a PMMA lens and A4 stainless-steel fasteners.