DF518S Model LED Lamp Compact LED Emergency Driver with Built-in Battery
3–50W Compact LED Emergency Driver with Built-in Battery Designed for 3–50W LED downlights, panel lights, tri-proof lights, ceiling lights, wall lights, linear lights, and other LED luminaires, this compact emergency LED driver provides a reliable and energy-efficient emergency lighting solution for luminaires equipped with external LED drivers or dimmable LED drivers. During normal operation, the unit works with the existing lighting system, while in emergency conditions it provides a reduced 3–5W emergency output, significantly reducing battery consumption and extending emergency runtime. The integrated battery design, compact size, and flame-retardant PC housing allow flexible installation inside or outside the luminaire. Exposed push-in terminals enable fast, tool-free wiring, simplifying installation and maintenance. With a built-in self-test function and an emergency output shutdown function that helps preserve remaining battery capacity when required, this emergency driver is an ideal solution for commercial, residential, industrial, and public emergency lighting applications.
Description
Key Features
3–50W LED Luminaire Compatibility – Suitable for LED downlights, panel lights, tri-proof lights, ceiling lights, wall lights, linear lights, and other compatible LED fixtures.
Compatible with External & Dimmable Drivers – Designed for luminaires using external LED drivers, including compatible dimmable driver configurations.
3–5W Energy-Saving Emergency Output – Reduced emergency power output minimizes battery consumption while providing essential emergency illumination.
Extended Emergency Runtime – Lower emergency output helps maximize battery endurance and maintain lighting for longer during power outages.
Built-in Battery Design – Integrated battery and driver construction provides a compact, space-saving solution with fewer external components.
Compact Housing – Small dimensions make it suitable for luminaires with limited internal installation space.
Flame-Retardant PC Housing – Durable flame-retardant polycarbonate enclosure enhances electrical safety and long-term reliability.
Exposed Push-In Terminals – Tool-free push-in terminals enable fast and convenient wiring, reducing installation time.
Built-in Self-Test Function – Automatically checks key emergency functions to simplify routine inspection and maintenance.
Emergency Output Shutdown Function – Emergency output can be switched off when required to conserve remaining battery power and extend battery availability.
Flexible Installation – Can be installed inside or outside the luminaire, providing greater flexibility for different fixture designs.
Easy Retrofit Solution – Suitable for integrating emergency functionality into existing LED luminaires without major fixture modifications.
Reliable Emergency Backup – Automatically provides emergency illumination when the normal power supply fails.
OEM/ODM Support – Battery capacity, emergency duration, electrical specifications, connectors, housing, and other configurations can be customized for project requirements.
Typical Applications
LED Downlights in Offices & Commercial Buildings
LED Panel Lights in Schools & Hospitals
LED Tri-Proof Lights in Factories & Warehouses
LED Ceiling Lights in Residential & Commercial Buildings
LED Wall Lights in Hotels & Public Facilities
LED Linear Lights in Retail & Industrial Spaces
Emergency Lighting Retrofit Projects
Commercial & Residential Emergency Lighting Systems
Factories, Warehouses & Logistics Centers
Hotels, Hospitals, Schools & Public Buildings
Product Specifications
| Specification Parameter | Technical Detail |
| Model | DF518S |
| Input Voltage | AC100–277V, 50/60Hz |
| Applied LED Fixture Power | 3W – 50W (Suitable for external driver fixtures) |
| Emergency Output Power | 1-5W |
| Emergency Output Voltage | DC9–60V (Auto-adjusting) |
| Emergency Duration | 60- 180 minutes or Customized |
| Battery Type & Capacity | Rechargeable Li-ion or LiFePO4 Battery |
| Charging Time | ≥ 12 Hours |
| Charging Current | Max. 200mA |
| LED Status Indicator | Green: Main Power and Test Button |
| Ambient / Critical Temp. | Ta: 0°C ... +50°C / Tc: Max. 60°C |
| Dimensions | 150 × 45 ×30 mm |
| Product Weight | 350g |
| Certifications & Compliance | CE, RoHS, PSE, UKCA |
| Warranty | 3 Years |
