A simple twist of the cap allows the light to pop up, ready to use when it’s switched on. Push the cap down, twist to lock, and light disappears into the deck. The LED Combination Retractable Bow Light is approved for USCG 2 NM (Colreg 2 mile). Investment cast stainless steel cap and bezel. IP67 waterproof rating. Note: All USCG approved navigation lights must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. Please refer to United States Coast Guard regulations for 1 NM and 2 NM navigation lights for more information.