Features High-quality Performance: LED electrodeless lamp beads are used to ensure eye-catching colors and long service life, multi-color galvanized screws, corrosion resistance and aging resistance. Dust-proof Base: Prevent dust from entering, prolong life, quality wiring screws, good electrical conductivity. High-quality Materials: Solid materials, careful selection of materials, cooling holes, ventilation and heat dissipation, safety and stability. Wide Range of Application: LED buzzer is suitable for factory equipment, instrumentation, marine equipment, medical equipment, lathe CNC, oil extraction, textile, electric power, light industry and other signals as instructions, alarm signals, accident signals, etc. High-quality After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. Feature: 1.Flashing LED structure, brighter light, intermittent beep, loud sound. 2. Multicolored galvanized screws for corrosion and aging resistance. 3. Powered by DC/AC12V and the light luminance is >=100cd/m². Specification:Item Type:LED Buzzer Product Model: AD16-22SM Use Voltage: AC/DC12V LED Color: Red Lightness: ≥100cd/m² Rated Current: ≤20mA Mounting Aperture: 22mm Package List:10 x Buzzer Package List 10 x Buzzer