The Eureka! Neon-esque Lightbulbs Solar String Light from Smart Solar features 10 individual coloured glass light bulbs, each light contains a filament led, creating a retro lighting effect. These solar festoon lights create the perfect ambient light display to transform your garden when placed in bushes, trees, parasols or gazebos and are perfect hung from festoon poles for lighting up alfresco dining areas and outdoor spaces.This solar string light features 10 individual filament bulbs (measuring 60mm x 105mm) giving a total lit length of 1.8m. A 2m wire from the lights to the solar panel mean it is easy to place the solar panel where it will receive maximum exposure to sunlight using the supplied ground spike.These solar powered lights are designed to last against the elements while bringing a designer look to your surroundings, thus making them ideal for use in any outdoor area where no power supply is available.LED outdoor string lights are designed to charge a rechargeable battery during the day via the solar panel and automatically light up at night using the stored solar energy, making them environmentally friendly.The duration of the light output is determined by the amount of exposure the solar panel receives during the day and how bright a day it has been. The typical duration of light output times is Spring 2-5 hours, Summer Up to 6 hours, Autumn 2-5 hours, and Winter 0-2 hours.These high-quality solar powered LED festoon lights come with batteries pre-installed and are ready to be used straight from the box. Replacement Smart Solar 1.2V AAA Ni-MH 300mAh battery can be purchased separately.Solar garden lights are a cost-effective lighting solution but are also environmentally friendly, easy to install and require absolutely no wires or maintenance.To maintain the optimum performance we recommend regular cleaning of the solar panel on these LED garden lights.