Automatic LED Night Light Plug in Energy Saving Dusk 2 Dawn. Incandescent Bulbs & Tubes. CFL Compact Fluorescent Bulbs. The Night Light Switches on Automatically at Dusk and Off Automatically at Dawn, Uses Photocell Sensor No need to replace bulbs any more - uses 3 LEDs and are long life Excellent for children / baby rooms, hall, stairs, landings.