LED Emergency Exit Sign AS-B109: Multi-Install with LiFePO4

The AS-B109 LED emergency exit sign is engineered to deliver dependable emergency lighting across diverse building types. Combining multi-installation flexibility, an MCU-managed LiFePO4 battery system, and IP65 ingress protection, this sign meets the operational demands of schools, shopping malls, airports, hospitals, and hotels. Below is a detailed overview of its key features, technical specifications, and application guidance.

Key Features of the AS-B109 LED Emergency Exit Sign

Multi-Installation Flexibility

The AS-B109 supports flag, hanging, ceiling-mounted, wall-mounted, and track installation methods. This versatility allows installers to adapt the sign to various building structures without requiring additional mounting hardware. Whether the application involves a high-ceiling warehouse or a corridor with limited wall space, the multi-installation design ensures proper placement for optimal visibility. The sign body measures 378 x 38 x 228 mm (L x W x H), providing a compact profile that integrates cleanly into most architectural settings.

MCU-Managed Battery Management

An integrated MCU (Microcontroller Unit) precisely controls battery charging and discharging cycles. The microcontroller monitors voltage and current in real time, preventing overcharge and over-discharge conditions. This intelligent management extends battery service life and maintains consistent light output during emergency operation. The charging indicator provides visual feedback: a red light indicates the battery is charging, while a green light confirms the battery is fully charged. The charge current is rated at 200 mA with a maximum charge time of 10 hours, and the charging voltage threshold is set at 3.60 V ± 0.05 V constant-voltage with cut-off at 3.65 V.

LiFePO4 Battery Technology

The built-in 3.2V 1800 mAh lithium iron phosphate (LiFePO4) battery offers superior thermal stability compared to conventional lithium-ion chemistries. LiFePO4 chemistry provides over 500 charge/discharge cycles at 0.5C rate while retaining 80% of initial capacity, measured at 25 degrees Celsius. The battery operates safely across a wide temperature range and resists thermal runaway, making it suitable for demanding environments. Manufacturer guidance recommends battery replacement every three years to maintain optimal emergency performance, and the battery pack carries a three-year warranty.

Self-Check and Fault Diagnosis

The AS-B109 incorporates an automatic self-diagnostic program that periodically inspects battery status, light source condition, and circuit integrity. The indicator system communicates operational state through distinct patterns: green flashing at 1 Hz signals monthly test mode, green flashing at 3 Hz indicates annual test mode, and rapid orange flashing alerts maintenance personnel to a fault condition requiring attention. This proactive monitoring reduces unexpected failures and simplifies compliance documentation for facility managers.

Low Power Consumption Design

With an input power consumption of less than 5 W at 230 Vac, the AS-B109 employs low-power design principles throughout its architecture. The SMT 2835 LED light source delivers adequate luminance while minimizing energy draw. During normal operation, the unit draws a maximum of 0.02 A at 230 Vac with a power factor exceeding 0.5. This low power profile reduces operational costs and supports energy-saving objectives for building management systems. The emergency output delivers a theoretical maximum of 2.0 W during battery operation.

Flame-Retardant Construction

The housing combines aluminum and PC (polycarbonate) engineering plastic with an acrylic edge-lit panel. These materials resist high temperatures and aging while meeting flame-retardant requirements. The IP65 rating (IEC 60529) ensures protection against dust ingress and water jets from any direction, permitting both indoor and outdoor installation. The IK07 impact rating (IEC 62262) provides resistance to mechanical impacts. The body color is silver, with alternative colors available upon request.

Technical Specifications Overview

The AS-B109 operates on an input voltage range of 85-265 Vac at 50/60 Hz, accommodating global power supply variations across different regions. The operating mode is maintained, meaning the sign remains illuminated during normal power conditions and switches to battery power during outages.

Protection features include over-voltage, over-current, over-temperature, short-circuit, and open-circuit protection with current limitation. The emergency switching test supports both manual testing via a test button and automatic monthly and annual self-test sequences. The emergency load power is rated at 6 VDC 500 mA maximum.

The SMT 2835 light source comprises 30 LEDs with a rated life of 50,000 hours at L80 performance level. Surface luminance in emergency mode ranges from 250 to 850 cd/m², with a viewing distance of up to 30 meters. Light color options include white (8500 K), red, green, and blue, selectable based on panel specification requirements.

The unit carries CE, LVD, RoHS, and EMC certifications and complies with LVD Directive 2014/35/EU, EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU, EN 60598-1, and EN 60598-2-22/EN 1838 standards. The product is classified as Class I (earthed) with the earth lead connecting to the designated terminal.

Application Scenarios

The AS-B109 emergency exit sign is suitable for a broad range of commercial and institutional environments. In educational facilities such as schools and universities, the sign provides clear egress guidance in corridors, stairwells, and assembly points. Shopping malls benefit from the sign’s high visibility and durable construction in high-traffic areas where wayfinding is critical.

Airports utilize the AS-B109 for exit identification in terminals, baggage claim areas, and concourses where clear directional signage supports passenger safety during emergencies. Hospitals deploy the sign in patient corridors, emergency departments, and service areas where uninterrupted emergency lighting supports patient and staff safety. Hotels install the sign in guest room corridors, lobby areas, and banquet halls to comply with fire safety regulations and protect guests.

The IP65 rating also permits installation in covered outdoor areas such as loading docks, parking structure entrances, and covered walkways, extending the sign’s utility beyond interior applications. The sign’s robust construction and wide operating temperature range of 0 to 45 degrees Celsius make it suitable for diverse climatic conditions.

Installation and Operation Guide

Installation begins by connecting the AC main power supply to the unit. Upon power connection, the red indicator illuminates, confirming the system is charging the battery. The charging process completes within 10 hours maximum, at which point the indicator transitions to green, signaling a fully charged battery ready for emergency operation.

During normal operation, the unit remains in AC power supply mode, continuously powering the LED array and maintaining the battery charge. If the main power fails or experiences a fault condition, the AS-B109 automatically switches to emergency mode, supplying rated emergency power to the LED load. Once AC power is restored, the unit resumes normal operation and the battery re-enters charging mode. The automatic switch-over function ensures seamless transition without manual intervention.

Periodic testing ensures reliable emergency performance throughout the product lifecycle. A monthly visual inspection should verify the indicator displays green when connected to AC mains. A 60-second simulated emergency duration test is performed by switching off the AC main power. The annual 30-minute simulated emergency test can be executed automatically by the device every 52 weeks or manually by pressing and holding the test button for six seconds after the device has powered on for at least 24 hours. After the annual test, the next test cycle resets to 52 weeks from that day.

Maintenance and Safety Guidelines

Regular maintenance preserves the AS-B109’s emergency performance and extends service life. Under normal operating conditions, batteries should undergo charge and discharge cycling at least once every six months to maintain capacity. For extended storage periods, disconnect the battery from the circuit to prevent over-discharge caused by circuit self-consumption.

Storage conditions should maintain temperatures between 0 and 35 degrees Celsius with relative humidity below 85 percent. During long-term storage, recharge the unit at minimum once every six months to prevent battery degradation. Avoid mechanical shock to the battery and never place the unit near open flame or attempt to disassemble the battery cell. The lithium battery electrolyte is mildly alkaline and may cause skin irritation upon contact; avoid handling damaged cells and rinse thoroughly with water if exposure occurs.

Ensure battery polarity connections remain insulated to prevent short-circuit conditions. The manufacturer provides a three-year warranty on the battery pack and a five-year warranty on other components, reflecting confidence in product durability and build quality.

Why Choose the AS-B109 for Your Project

The AS-B109 LED emergency exit sign addresses the core requirements of modern emergency lighting: reliable battery performance, flexible installation options, energy efficiency, and comprehensive regulatory compliance. Its MCU-managed charging system, LiFePO4 battery chemistry, and self-diagnostic capabilities distinguish it from conventional emergency signs that rely on simpler charging circuits with limited monitoring functionality.

For project specifications requiring CE-marked emergency exit signage with multi-installation capability and IP65 environmental protection, the AS-B109 provides a technically sound solution. Custom light color options and panel pattern customization are available for orders of 500 pieces or more, with lead times ranging from seven days for standard quantities to fifteen days for orders between 501 and 3,000 pieces. The HS code for customs purposes is 9405610000.

Frequently Asked Questions

1. What is the emergency duration of the AS-B109 LED exit sign?

The AS-B109 provides up to 180 minutes of emergency illumination in reduced-power, non-constant-current discharge mode, with a viewing distance of up to 30 meters and surface luminance between 250 and 850 cd/m².

2. How often should the LiFePO4 battery in the AS-B109 be replaced?

Manufacturer guidelines recommend battery replacement every three years to ensure reliable emergency performance, though actual service life may vary based on cycling frequency and ambient operating temperature.

3. Can the AS-B109 emergency exit sign be installed in outdoor environments?

Yes. The AS-B109 carries an IP65 ingress protection rating per IEC 60529, permitting installation in both indoor and outdoor environments, including covered outdoor areas exposed to dust and water jets from any direction.

4. What certifications and standards does the AS-B109 emergency exit sign comply with?

The AS-B109 holds CE, LVD, RoHS, and EMC certifications and complies with LVD Directive 2014/35/EU, EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU, EN 60598-1, and EN 60598-2-22/EN 1838 European standards.

5. What is the minimum order quantity for custom color or pattern options on the AS-B109?

Custom light color and panel pattern options are available for minimum order quantities of 500 pieces, with standard lead times of seven days and fifteen days for orders between 501 and 3,000 pieces. Custom orders above 3,000 pieces have lead times to be agreed upon with the manufacturer.