There are a total of 50 Yellow / Gold lights on this LED string. They are 5mm lights, also called polka-dot lights, with a conical shape that allows for greater light dispersion. Being LEDs, these bulbs use substantially less power than other string lights and are much more durable. The green wire is 22 gauge. The total string length is 17.5', including 4" between bulbs, a 6" end cord and a 6" lead cord. Average power consumption is 0.071 watts/LED. Product can be connected up to 210 watts per plug. The bulbs/lenses are weatherproof and non-removable or replaceable. If one goes out the rest stay on. Product is UL approved. intended for temporary 90 day seasonal use. Light string has traditional stackable, end-to-end plugs. 5mm Conical, LED, Yellow / Gold, 50 lights, green wire, 4" spacing, 17.5' long