Features: Easy to install it on walls, trees, metal and glass. Using grade A+battery cells, large capacity, long standby. Intelligent sensing system provides overcharge, over voltage, short circuit and more security protection. Even sensing body motion in a brightness sufficient place, the light will not turn on. No wiring solar power, convenient and safe. ABS material, dustproof and rated IP44 waterproof, perfect for outdoor using. Auto-sensing: detecting light brightness and human motion automatically. Mode conversion: When it sensing all around is too dark, it enter to dim light mode automatically, when it sensing human movement, it enter to bright mode automatically, it delays 30 seconds when people walk out of its sensing range, then enter to dim light mode again.