The Seachoice Spare Light Base Assembly is an extra base assembly to keep on hand. It fits Seachoice 05591 and 05611 all-round lights. It is a plug-in type assembly with a waterproof, black rubber, snap-on cover to keep the moisture out. This base assembly also fits Perko 1330 and 1630 series lights. 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.