Features:Has high strength and can adapt to harsh environment.Has high brightness, high visibility and no need to maintain in use.Continuously and quickly twinkle in the form of triple frequency flash, producing strong visual impact and better warning effect.Energy saving, long life and power consumption are about half of that of incandescent bulbs.Adopt multilayer LED arc surround design, uniform lighting, high brightness, no dead point, no bad contact.Easy installation, stable work and low maintenance cost.Environmental, no harmful metals, waste recycling.Specifications:Voltage: DC9-12VCurrent: 30-50mAConfiguration: 15 bright LED beadsFunction: Flash 2 times / sec.Working Voltage: DC9-12VWorking Current: 30-50 mAStrobe Speed: less than 120 times / min.Service Life: 1000 hours (continuous operating of standard power supply)Lampshade Color: BlueSize: 7.3*4.2cm / 2.9*1.7in ( Dia.* H)Package Weight: 99g/3.5ozPackage List:1 * LED Flashing Alarm Lamp2 * Bases1 * Pack of Mounting Screws1 * Sticker .