The Festoon Light String is a heavy duty, waterproof, vibration resistant, shatterproof lighting system that is UL Listed. It is available in both 12-volt and 24-volt versions, with custom spacing. The Xenon lamps (available in 5, 8.5 and 10 watts) have an exceptionally long life expectancy of approximately 20,000 hours. This system is particularly suitable for permanent installation on buildings, bridges and structures where access for lamp changing is difficult and cost intensive. The accessories include mounting backplates, cable clips, aircraft cable, replacement bulbs and replacement globes available in seven colors (Clear, Blue, Green, Red, Yellow, Pink and Purple).