LED Features:* 304-grade polished and passivated SST trim ring over the top of the lip on the beverage holder, outlines LED light to flow to the sides, illuminating the beverage holder"s lip.* Soft light for evening use.* Unique design allows use with most SST and plastic beverage holders.* 16-gauge wire harness for direct installation to electrical system.* Two exterior grooves parallel to top lip, 1/2" down and 3/4" down, to hold locking "O" ring for secure installation.* Drain system accommodates either 5/8" or 3/8" hose attachment.* Caulking groove under lip.* UV-enhanced foam insulator pad adhered to inside bottom.* Made from opaque polymer material and acrylics.Included is a 2-stage Rubber Cup Insulator:* Optional full form 2-step high UV-molded rubber insulator fits tight within the Lighted Beverage Holder.* Rubber tabs secure beverages; allows for easy cleaning.