1、Solar acousto-optic alarm lights have two modes are day or night mode. 2、High-quality solar power panels provide energy, the power supply has a 30-day durability. 3、Solar acousto-optic alarm lamp can cover 110-degree area. 4、Back support, the solar alarm lamp can be wall- mounted. 5、Waterproof, suitable for outdoor, farm, garden, warehouse, villa etc. Features: Solar acousto-optic alarm lights have two modes are day or night mode. High-quality solar power panels provide energy, the power supply has a 30-day durability. Solar acousto-optic alarm lamp can cover 110-degree area. Back support, the solar alarm lamp can be wall- mounted. Waterproof, suitable for outdoor, farm, garden, warehouse, villa etc. Specification: Color: Red Material: ABS Solar Power Panel: 5V* 0.6 polysilicon Charge Style: solar energy charge Charge Time: 6-8 hours  Alarm Volume: 110 decibel Inductive Range:5-8m (affected by ambient temperature) Inductive Angle: 110 Battery Capacity: 3.7V*400mAh polymer lithium battery IP Rating: IP65 Lighting Time: 45s Induction, sound&light alarm  more than 300 times, 30 days on a single charge Functions: day mode (24h induction alarm), nigh mode (alarm only at night) Weight: Approx. 168g Specification: 1 x Alarm Lamp 2 x Screw & Expansions