Description
Replacement 4W LED Emergency Driver | 120-277V | 90-Minute Backup | Compact Case
The Keystone KT-EMRG-LED-4C-400-EN2 is a 4W replacement LED emergency driver that delivers 90 minutes of battery backup lighting during power outages. Designed for universal 120-277V input, this constant wattage emergency backup driver provides a stable 12-55V DC output and meets Class 2 compliance standards. The integrated high-temperature LiFePO4 battery ensures long-lasting performance, while built-in over-voltage, overcurrent, and short-circuit protection enhances fixture safety.
Product Specifications
- Max. Output Power: 4W
- Input Voltage: 120–277V AC ±10%
- Output Voltage Range: 12V – 55V DC
- Output Current Range: 73 – 333mA
- Emergency Runtime: 90 minutes
- Battery Type: LiFePO4, 6.4V DC
- Recharge Time: 24 hours
- Power Factor: >0.5
- Surge Protection: Built-in overvoltage, overcurrent, and short-circuit protection
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Lifespan: 50,000+ hours
- Certifications: UL 924, FCC Compliant
- Warranty: 5-Year Limited Warranty
- Dimensions: 5.31” L x 1.69” W x 1.17” H
- Case Material: Metal
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Disclaimers
Non-Returnable Item Notice:
Due to the sensitive electronic nature of LED drivers and the risk of improper installation, tampering, or programming, this item is non-returnable. Please confirm compatibility before purchasing. If your LED driver is defective upon arrival or during the warranty period, it may be eligible for a manufacturer warranty replacement. For assistance selecting the correct driver, please contact our support team.
