Feature 1Environmental protection, no harmful metals, waste recycling. 2Adopt multilayer LED arc surround design, uniform lighting, high brightness, no dead point, no bad contact. 3Energy saving, long life and power consumption are about half of that of incandescent bulbs. 4Continuously and quickly twinkle in the form of triple frequency flash, producing strong visual impact and better warning effect. 5Has high brightness, high visibility and no need to maintain in use. Specification 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 protection, no harmful metals, waste recycling. Specifications: Voltage: 12V/24V Current: 30 Ma Configuration: 15 bright LED beads Function: Flash 2 times / sec. Working Voltage: 12/24VDC Working Current: 50 mA/30 mA Strobe Speed: less than 120 times / min. Service Life: 1000 hours (continuous operation of standard power supply) Lampshade Color: Blue Size: 7.3*4.2cm / 2.9*1.7in ( Dia.* H) Package Weight: 99g/3.5oz Package List: 1 * Red LED Flashing Alarm Lamp 2 * Bases 1 * Pack of Mounting Screws 1 * Sticker