Sunnytech Solar 12led Motion Sensor PIR Wall Mount Garden Flood Light Lamp Path Yard Door Solar power It is easy to install and easy to maintain. Absolutely NO WIRING and easy to install Recharged by solar panels under sun light. When its dark, the PIR detects anyone approaching the door and automatically turns the LED lights on for them, then times out after 30 seconds please push power switch "ON" before you use it!! Don't strike the product, so as not to cause irreversible damage. The stake is so sharp that you must be careful when using it. And don't let children play with it.