Warning and alarm light HC-79 with 24V DC operation, 105 decibel sound output, and strobe flash up to 120 times per minute for commercial and community fire protection safety.
Warning and alarm light HC-79 with 24V DC operation, 105 decibel sound output, and strobe flash up to 120 times per minute for commercial and community fire protection safety.
HC-79 Warning and Alarm Light: 24V DC Operation with 105dB Sound and 120/min Strobe Flash
The Ji'an Electronics HC-79 warning and alarm light is a compact safety device designed to provide combined visual and audible alerts in commercial, enterprise, and community settings. With its primary application in fire protection systems, this unit offers a practical solution for areas requiring clear, unmistakable warning signals. Operating on either 12V or 24V DC power, it delivers a bright strobe flash at up to 120 cycles per minute alongside a 105 decibel audible alarm. The device's 73mm diameter by 45mm height construction makes it suitable for installation in various locations where space considerations are important but visibility remains essential.
Technical Specifications and Operation
The HC-79 combines both visual and audible warning elements in a single integrated unit. Its technical specifications determine its suitability for different installation environments and safety requirements.
Power and Electrical Characteristics
This warning light offers dual-voltage operation, working with either 12V or 24V DC power supplies. This flexibility allows installation in various electrical systems without requiring voltage converters. The device draws a working current of either 50mA or 30mA depending on configuration, contributing to its energy-efficient operation. With a rated service life exceeding 1000 hours under standard power supply conditions when operating continuously, the unit provides extended reliability for safety applications where consistent performance is crucial.
Visual and Audible Alert Performance
The HC-79 produces a bright strobe flash that cycles at up to 120 times per minute, creating a highly visible warning signal that can attract attention even in well-lit environments. Simultaneously, the integrated sound alarm generates approximately 105 decibels of audible alert, sufficient to be heard over moderate background noise. This combination of intense visual flashing and loud sound ensures the warning reaches people throughout the protected area, providing both visual and auditory cues for maximum effectiveness in emergency situations.
Physical Dimensions and Construction
Measuring 73mm in diameter by 45mm in height, the HC-79 warning light maintains a compact footprint suitable for installation in various locations without occupying excessive space. The unit's circular design with a height less than its diameter contributes to a low-profile appearance while maintaining visibility. Constructed with durable materials, the housing protects the internal components while allowing the strobe flash to be clearly visible from multiple angles. The included mounting base and screws facilitate secure installation on walls, ceilings, or other surfaces as required by specific safety protocols.
Application and Installation Considerations
Designed primarily for fire protection applications in enterprise buildings and communities, the HC-79 serves as part of comprehensive safety systems. Its specifications make it suitable for various commercial and public settings where reliable warning signals are mandated or recommended.
Commercial and Community Fire Safety Use
In enterprise buildings and community settings, the HC-79 warning light provides the visual and audible alerts necessary for fire protection systems. Its 105 decibel alarm sound ensures it can be heard throughout larger spaces, while the strobe flash provides clear visual indication even for individuals with hearing impairments. The device's compatibility with both 12V and 24V DC systems allows integration with existing fire alarm control panels and power supplies commonly used in commercial installations. This makes it particularly suitable for retrofitting into established safety systems or incorporating into new construction projects.
Installation and Placement Guidelines
Installation involves mounting the unit using the provided base and screws in locations with optimal visibility and audibility. Consideration should be given to mounting height, sight lines, and acoustic properties of the space to ensure maximum effectiveness. The four available colour options—red, yellow, blue, and green—allow for colour-coded signalling according to different alert types or zones within a facility. Regular testing of both the strobe flash and sound output is recommended to verify proper operation, particularly in environments where dust, moisture, or temperature extremes might affect performance over time.
Practical Benefits and Selection Factors
The HC-79 warning light offers specific advantages for safety applications through its combination of features, construction, and performance characteristics supported by its technical specifications.
Reliability and Maintenance Considerations
With a rated service life exceeding 1000 hours of continuous operation under standard power conditions, the HC-79 provides extended reliability for safety applications. This longevity reduces maintenance frequency and replacement costs in installations where the device may need to operate for extended periods. The integrated design combining both visual and audible alerts in a single unit simplifies installation and reduces the number of separate components required in a safety system. The device's straightforward electrical requirements—working with common 12V or 24V DC supplies—minimises compatibility issues with existing infrastructure.
Why This Warning Light Suits Safety Applications
The HC-79 warning light addresses specific requirements of commercial and community safety systems through its measurable performance specifications. Its 105 decibel sound output meets common requirements for audible alarms in occupied spaces, while the 120 cycles per minute strobe flash provides attention-grabbing visual signalling. The compact 73mm diameter by 45mm height allows installation in locations with space constraints without sacrificing warning effectiveness. The availability in four distinct colours supports standardised safety signalling protocols where different colours indicate specific types of alerts or designate particular zones within a facility.
