Led Night Lights with Automatic Dusk to Dawn Sensor Soft Baby Nightlight for Kid's Room Bedroom ,Corridor , Wall, Closet, Hallway Ambient Light,Plug-in Guide Light -A Pack of 4 (Square) Automatic light detection:Built-in smart light sensor only activates in darkness, the darker the lighter; no switch needed;perfect for anywhere you need extra soft glow at night.Good guide light in darkness Low power usage:No need bulb replacement with energy efficient LEDs, 12hrs each day, only 1 kwh per year,Reusable and durable, Eco -friendly 110-220V AC input, with standard plug, no need batteries, no heat from lamp, stays cool to the touch, safe for use in kids room Various color choices: pack of 4 in color White, Blue,Pink and Orange, adjust to different space. No need bulb replacement with energy efficient LEDs, 12hrs each day, only 1 kwh per year,Reusable and durable, eco friendly.