[Built-in Photocell Sensor] With a built-in advanced dusk-to-dawn sensor, and auto turn ON at dusk, auto turn OFF at dawn; our exterior post light provides convenient & worry-free lighting for your outdoor space; enjoy the energy efficiency of this automatic activation, saving your time & electricity bills [Large Size & Weatherproof] Enlarged 22-inch size for brighter lighting; easy bulb change with large light port; our outdoor lamp post light crafts a durable die-cast aluminum construction & high-tech coating for waterproof, rustproof, and corrosion-resistant in any weather conditions like rain, snow, and high temperatures [2 Mounting Ways] Waterproof post lamp can be mounted on either a 3" diameter light post (Not Included) or a pier mount base (Included) based on your preferences; quick & easy installation, with wire connectors & screws provided; Dimensions: Post Light Body: 7.9"(D) x 7.9"(W) x 20"(H); Pier Mount Base: 5.7"(L) x 5.7"(W) [Vintage & Wate