This is the issue with most solar lights. They don’t last long. My boss’ husband owns an outdoor lighting company, and a lot of his calls are to light a house with electrical lights after people got sick of their solar lights not working. As far as installing, are you going to do it yourself or hire someone? If you do it, it can be involved to do it properly (digging trenches to run the wires underground so they aren’t exposed). If you are hiring someone, It’s as easy as writing a check :)