22mm Panel Mount LED Flashing Buzzer with Intermittent Sound for Electrical Control Panels

This LED flashing sound and light buzzer is a combined signal device designed for integration into electrical panels and secondary distribution systems. Its primary function is to provide a distinct, attention-grabbing alert through simultaneous flashing light and an intermittent audible tone. Designed for a standard 22mm panel cut-out, it simplifies installation by replacing the need for separate visual and audible indicators. The unit is available in several configurations, including different LED colours and operating voltages, making it a versatile component for alarms, status indicators, and fault warnings in industrial, commercial, and control panel applications where clear signalling is crucial.

Features and Construction

The buzzer integrates both visual and audible signalling into a single compact device. Its construction centres around reliable LED technology for the light source and a sounder mechanism that produces an intermittent beep, ensuring the signal cuts through ambient noise.

Material and Build

The core visual component is an LED light source, chosen for its efficiency and long operational life in indicator applications. The unit is built to house both the LED and the sounder in a casing designed for 22mm panel mounting. It carries 3C certification, indicating compliance with specific Chinese safety and quality standards for electrical products, which can be a key requirement for many installations.

Size and Practical Fit

The product is designed around a universal 22mm installation aperture, a common size in many electrical enclosures and control panels. This standard sizing allows for straightforward retrofitting or inclusion in new panel designs without requiring custom modifications. The unit weight of 0.03kg per buzzer contributes to a lightweight design that doesn't place undue stress on panel doors or surfaces.

Uses and Placement

This signalling device is suited for applications where a clear, unambiguous warning is necessary. Its combined light and sound output makes it effective in environments where operators might not be looking directly at the panel or where background noise is present.

Event or Professional Use

In professional and industrial settings, this buzzer is ideal for indicating faults, process completions, or safety alerts within control systems for machinery, HVAC, or power distribution. The availability of red, green, and yellow LEDs allows for colour-coded signalling—for example, red for alarms, green for normal operation, or yellow for warnings. The intermittent sound type is specifically designed to be noticeable and urgent.

Everyday Home Use

While primarily for professional panels, this unit could also be integrated into advanced DIY projects, home workshops, or custom security panels where a reliable, panel-mounted visual and audible alarm is needed for systems like sump pump alerts, workshop machine status, or custom automation notifications.

Benefits and Buying Value

The value of this product lies in its integration, flexibility, and compliance. By combining two signal types, it saves panel space and simplifies wiring compared to installing separate lights and buzzers.

Reuse and Low Maintenance

The use of an LED light source contributes to lower power consumption (rated at 20mA) and typically requires less frequent replacement than older incandescent indicator bulbs. The product's specified insulation resistance of ≥2 MΩ supports reliable operation and safety in various electrical environments. Being supplied in a 10-piece box offers value for installers or facilities needing multiple units or keeping spares.

Why Choose This Product

This buzzer stands out for its specific combination of a 22mm form factor, dual light and sound output, and the range of voltage and colour options. The voltage flexibility—with models for AC/DC 12V, 24V, and 220V—means it can be matched to a wide array of control voltages without requiring additional power conversion. The 3C certification provides an additional layer of verified compliance for projects where this is mandated. For anyone needing a standard-sized, combined alarm indicator, this product provides a consolidated, specification-driven solution.