Features: Solar acoustooptic alarm lamp has two functions, the first mode is 24-hour induction acoustooptic alarm in daytime. The second mode is night mode (no daytime induction,dark induction acoustooptic alarm), induction distance of 5-8 meters. Modal induction angle 110 degrees, solar light about 6 hours full of electricity, a charge can be used 24 hours a day for 30 days of ultra-long duration, 365 days continuous power, no power-consuming alarm lights. It is suitable for farms, villas, orchards, tea gardens, farms, factory warehouses and other places. Function: 1. Daytime mode (24-hour induction acoustooptic alarm) 2. Night mode (no daytime induction, dark induction acoustooptic alarm) 3. Only flashing lights during the day without sound 4. Only flashing at night without sound Specifications: Solar panels: 5V*0.6W polycrystalline silicon LED: 6 flash red lights, 1000 meters visible Product Material: ABS Size: 120*69mm/4.72*2.72" Waterproof grade: IP65 Induction Angle: Film Induction Angle 110 Degree Charging Method: Solar Energy Charging Alarm sound: 110 decibels (1000 meters clear) Induction distance: 5-8 m/16.4-26.2 ft (affected by ambient temperature) Battery parameters: 3.7V*400mAh full capacity polymer lithium battery Working hours: induction 45 seconds or so sound and light alarm more than 300 times, once charged, standby for 30 days Package Included: 1 * Solar Warning Light