These 12V lighting accessories are for use with ProEco RGB Color-Changing LED Light Strips. 5-Way Splitter (WLED-RGB-S) If you are looking to synchronize or just connect ProEco Color-Changing LED Light Strips after the controller, this 4-pin, 5-way splitter connects up to five lights together after the control box. This allows you to synchronize multiple light strips from one controller. Extension Cord (WLED-RGB-C-3) If you need to extend one or more of those light cords, this 3-meter 4-pin extension cord is what you need. Grommets These replacement grommets are used to seal the end of the cord on a ProEco weir. Small grommets seal around a cord on an acrylic weir, while large grommets seal around a cord on a stainless steel weir. Before the controller, standard LED splitters, extension cords and photocells may be used.