This set of three stainless steel solar gutter lights are an easy and effective way to light up your home each light has a solar panel on the top that charges up during the day when given enough direct light with an automatic sensor that switches on at dusk simply clip the light over the edge of the gutter and the job is done no drilling or fuss is required with no wiring or batteries gives you peace of mind about safety and security around your home buy one get one half price