What Power Supply Do Electric Sirens Use? AC or DC?

Electric sirens support multiple power supply modes,mainly divided into AC power supply and DC power supply types to adapt to different usage environments.AC electric sirens are commonly designed with 110V or 220V voltage specifications,suitable for fixed installation in factories,communities,scenic spots and other places with stable municipal power supply,supporting long-term standby and continuous work.DC electric sirens adopt low-voltage designs such as 12V and 24V,which are compatible with vehicle power systems,storage batteries and mobile power supplies,widely used for emergency vehicles,mobile warning vehicles and field mobile early warning.In addition,there are dual-power electric siren models that support both AC and DC switching,with built-in battery backup modules.They can automatically switch to battery power when municipal power fails to ensure uninterrupted warning operation,improving overall working reliability.