The Vevor outdoor string lights set includes a 50' light string with 15 S14 shatterproof bulbs that deliver a warm 2700K glow for patios, porches, gardens, and other indoor or outdoor spaces. Its dimmable design allows you to adjust brightness with a compatible dimmer switch to suit everything from quiet evenings to parties. The flexible cable and E12 sockets are built for reliable use in large areas and cold-weather conditions. With FCC compliance and an IP45 waterproof rating, these lights are designed for year-round outdoor use. The set also includes a spare bulb and a user manual.