Motion detection with three settings: on, off and auto. When auto mode is selected, motion detection is activated only when it is dark. The light will stay on for approximately 30 seconds once activated. It can detect movement up to 10 to 15 m away, and this with 100% accuracy. Convenient: perfect for indoor or outdoor use, this projector offers greater coverage of light if you want to light up your porch and the steps and the door knob. The light sensor can be manually rotated 360 degrees and tilted slightly at an angle for more directional exposure. Note: This item is suitable for indoor or outdoor use in a sheltered area. Splash resistant and suitable for outdoor use under protection, such as a porch, ledge or roof. Bright and durable: bright floodlight with 9 LED bulbs to illuminate an indoor or outdoor space, such as such as a front or back porch, shed, trailer, stairs, closet, driveway, garden, etc. Change bulbs less often with LED technology that lasts up to 100,000 hours. Small and easy to install: this projector measures 9 x 9 x 7.5 cm. You may use a small piece of 3M self-adhesive pad (included) for mounting on smooth surfaces only. You can use a wall anchor screw (supplied) for permanent installation. Requires 3 AAA batteries (not included) alkaline (disposable) or rechargeable (recommended). One set of batteries will last a very long time.