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 sound4. Only flashing at night without soundSpecifications:Solar panels: 5V*0.6W polycrystalline siliconLED: 6 flash red lights, 1000 meters visibleProduct Material: ABSSize: 120*69mm/4.72*2.72"Waterproof grade: IP65Induction Angle: Film Induction Angle 110 DegreeCharging Method: Solar Energy ChargingAlarm 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 batteryWorking 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