Solar lights are really easy to install in your garden. All you have to do is to decide on the site you want to lit and stick the fixture in the ground. Best of all they don’t need electricity.
Some will come with a small built in solar panel on the top; other will have a removable panel that you can place at a sunny and convenient location.
During the day the solar panel linked to an electronic circuit, charges the batteries. When night begins to falls a photocell detects the changes in luminosity and switch on the light. At sunrise the light switches off and the charging cycle starts again.