Christmas Mini Lights, 100 Clear Lights, Brown Wire/Cord, 42 ft Long 100 clear lights on brown wire; 42 Watts per string if 1 bulb burns out and is left in the socket, the remaining 99 lights will stay lit UL listed for indoor and outdoor use (complies with UL588) commercial-grade quality End-to-end connectable up to 5 sets (210 feet)