There are 35 LED lights on this strand. Being LED's, these bulbs use substantially less power than other string lights and are much more durable. The green wire is 22 gauge. 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. It has a one year limited warranty and is intended for temporary 90 day seasonal use. Light string has traditional stackable, end-to-end plugs.