1. Material: ABS, PC 2. Voltage: 5-24V universal 3. Working mode: whistle + flashing 4. Protection level: IP54 5. Volume: above 100dB 6. Power: 4KW 7. Installation method: wall-mounted installation 8. High decibel transmission, clear and bright sound 9. Waterproof and dustproof design, can be used outdoors in rainy days 10. PC lampshade, ABS base, not easy to age 11. LED stroboscopic light, using high-brightness LED lamp beads, low energy consumption, durable 12. Alarm principle: power-on alarm, alarm in the form of sound and light 13. Applicable scenarios: industrial alarms, machine tool alarms, motorcycle sound and light alarms, etc. can be used, such as machine tools, workbenches, motorcycles, warehouses, etc.