This 3" x 1-1/8" Solar Light can be set in any area that is exposed to the sun at least 2-4 hours a day, in order to keep lit all night. The LED light is designed to work for up to 100,000 hours and the only maintnance along the years will be a very easy battery replacment (every 3 years in avarage). Perfect for a newly poured concrete slab or for any other type slab/surface where a 3" wide hole can be drilled.