Power Cords & Cables, PCC-36003, PhotoCell Photo Electric Digital Outdoor Timer, Plug In. Turns on lights at dusk with photo electric eye. Rugged, Reliable, Simple to Use. Lights Automatically. Perfect for holiday, landscape, security lighting. Timing range from 1-9 hours, dusk to dawn settings. Set Time With The Click Of A Button. Grounded For Use With 3 Wire Plugs And Outlets. Durable Construction For Indoor And Outdoor Use.