Whether at anchor or underway, it's important your navigation lights are both functional and clearly visible to nearby boaters. Intelligently designed for easy installation, maintenance and efficient light output, this bi-color bow light provides 1 mile range of visibility to enhance safe navigation from sunset to sunrise or anytime there's poor visibility. Pre-drilled with two countersunk holes to accommodate #8 fasteners. Suitable for sail or powerboats under 39 feet. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters offering a wide-ranging product line while remaining affordable.