The super Solar Garden Lights have 90 warm white LEDs, are solar powered, and have a total height of 43.7 inches, with an illuminated diameter of 11 inches. Made from metal, they feature a built-in rechargeable battery. The lights automatically turn on at dusk and turn off at dawn. They are for outdoor use only. This is a solar product and it requires sunlight to be powered. The length of time these stay illuminated depends on the time of year and weather conditions. They will still work in winter but only for a couple of hours from dusk.