Instapark YT1008B-4P Solar-powered Dusk-to-Dawn Outdoor Motion Sensor LED Light, Weather-proof, Color Black, 4-pack 4 per pack, built-in photocell turns on the light automatically and enters Dim mode at dusk and turns it off at dawn Built-in motion detector automatically switches from Dim to Bright when motion is detected, and switches back to Dim if no more motion is detected in approximately 30 seconds Self-powered by high-efficiency solar panel, ideal for outdoor paths, patios, porches, decks, driveways, sidewalks, entrances, sheds and other remote areas Energy-efficient, long-life, super-bright white 16-LED solar light with built-in rechargeable Li-ion battery Easy, fast, convenient & hassle-free installation, mounting anchors and screws included