Solar Gutter Lights $39.95 Doesn't need electrician. Traditional outdoor security lights can be expensive to install and run. These are water-resistant 12cm diameter lights clip to your guttering? Ruggedly made from metal and plastic, they’re solar powered, so they come on automatically at dusk at no extra cost. They’ll also light your paths and doors for added safety – they’re easy to attach to a wall, shed or fence. Two solar lights included.