Save: Save money on energy and bulb replacement. The nightlightuses 4pcs super bright LED, no bulb replacement.12hrs each day, only 2.2Kwh per year. Probably not even enough to make any movement of yourpower meter. Exact rightness: Not too bright, not too dim. Just the right amountoflightto see where you are going in the dark. Allows you to getupatnight, get some water, use the restroom and return to bed withoutturning on any main lights. Auto On/Off: Built-in sensitive light sensor, the nightlight automaticallyturns on at dusk and off at dawn. You don't have to worry about turningthe lights on and off around the house in the morning and evening.The smart sensor does it for you. The nightlight is perfect for hallway, bathroom,bedroom, kitchen, living room, nursery, kids room, or anywhere you needsome extra light during the night without turning on a harsh bright light I don't know how to refine photos, so I take real photos directly