Pixel extensions are for Light-O-Rama 12V Bullet Pixels, Square Pixels, Bulbs and Ribbons. THEY WILL NOT WORK WITH ORIGINAL CCR-RIBBONS, ORIGINAL CCB-BULBS and ORIGINAL CCP-PIXELS. Do not look at the dangle, rather look at the wire between pixels or bulbs on your string, if there are Three Conductors (Wires), you can use these extensions. If there are Four Conductors (wires) then the pixels cannot be extended! All 12V devices can be extended.