Get this high quality super-bright 200 watts solar powered street light outdoor lamp withâ  control sensor. it has internal battery where it charges during the day time for use at night when there is darkness. it has in-built photocell light sensor which sense darkness in the evening and switches the light on automatically. the light stays on throughout the night and switches itself off in the morning at sunrise. once charged the light should work well into the night. the street light is simple to install and comes with a 3ft mounting pole that you can use to mount on a wall or on a pole. this makes it great for roadsides, walkways, house perimeters, garden lighting etc.. this high bright solar streetlight is the most economical and convenient street/security light in its class.