Abstract: An electrical post lamp has a body with at least three light-transmitting sides, a base member for mounting the body on a post, and a top member for shedding precipitation and airborne dirt. The body includes a lighting element, a rechargeable battery for powering the lighting element, a photosensitive switching element for activating the lighting element during the night and deactivating the element during daylight, and a solar collector including at least one solar panel for recharging the battery during daylight. The top member incorporates the solar collector panels and is formed with a downward sloping periphery having a slope which is determined by and approximately equal to the geographic latitude of intended use of the post lamp. In appropriate cases, a mirror may be provided for reflecting sunlight onto the North-facing or South-facing portion of the solar collector on the top member.