Decorate year round with this set of 50 standard grade lights, built with 20 gauge wire and suitable for both indoor and outdoor use. The strand has super bright, Blue lights on green wire. Total length of the strand is approximately 25 feet, including 6 inch spacing between bulbs and 10 inches of leader cord. The set features straight-line construction, so even if one bulb burns out the rest will remain lit. The fuse-protected, end-to-end connector allows up to six sets to be connected together in a continuous strand. Use these lights in windows, trees, wreaths, topiaries and many more applications. Great for landscaping year round - winter, spring, summer, and fall. They are great for Christmas and Valentine's Day too. This set is UL listed for both indoor and outdoor use, and its high-quality construction allows it to stay lit even in the most adverse weather conditions.