Best Battery-Backed Exit Signs for Reliable Emergency Lighting
Answering the need for dependable, battery-backed exit signs, this guide highlights top options with built-in back-up power. Ideal for facilities where continuous visibility during outages matters, these signs provide reliable illumination when mains power fails. The selections focus on signs with internal batteries (Ni-Cd or Ni-MH) and UL-listed safety features, suited for offices, retail spaces, and small-to-mid-sized buildings. The table below summarizes the five products chosen for their battery backup capabilities and practical installation options.
| Product | Brand | Power Backup | Mounting Options | Best For |
|---|---|---|---|---|
| Lithonia Lighting Single-Sided LED Exit Sign | Lithonia Lighting | Ni-MH Backup Battery | Top, side, or back | Indoor damp locations; flexible color (red/green) |
| TANLUX Red Exit Sign with Emergency Lights | TANLUX | Built-in Ni-Cd Battery | Top, side, or back | Wide-voltage operation; commercial settings |
| TANLUX Red Exit Sign with 1.0 Meter Plug-in Cord | TANLUX | Built-in Ni-Cd Battery | Top, side, or back | Plug-in convenience; versatile mounting |
| Amazon Basics LED Emergency Exit Sign | Amazon Basics | Battery Backup | Wall, ceiling, and end mount | Budget-friendly; dual-face visibility |
| CM MZY Emergency Exit Sign | CM MZY | Ni-Cd Battery Backup | Top, side, or back | UL-listed; configurable mounting |
Lithonia Lighting Single-Sided LED Exit Sign
The Lithonia EXRG is a one-sided LED exit sign housed in a bright white thermoplastic shell. It features a built-in Ni-MH backup battery and a color switch that toggles between red and green for flexible wayfinding. The unit supports top, side, or back mounting, with universal chevrons that can be removed for directional indicators. It is UL Listed and designed to meet UL 924, NFPA 101, NFPA 70, and OSHA requirements, making it suitable for indoor damp locations within a temperature range of 50°F to 104°F (10°C to 40°C).
Best for: Indoor spaces seeking color options and easy installation. This sign is well-suited for corridors and assembly areas where color-coded exits support quick evacuation. It’s a solid choice when a single-sided, battery-backed solution is preferred.
Limitation: Only a single face is illuminated, which may be less optimal for wide-area visibility compared with a double-face design.
TANLUX Red Exit Sign with Emergency Lights
This TANLUX model combines an ultra-bright red EXIT LED with an emergency light and a built-in Ni-Cd battery for at least 90 minutes of emergency operation. It operates on 120V-277V AC universal voltage and offers three mounting options: top, side, and back mounts (canopy included). UL-listed for commercial use, it is designed for indoor and outdoor general spaces. The package includes mounting parts in the housing for straightforward installation.
Best for: Facilities needing a robust, all-in-one exit sign with battery backup and flexible mounting. It’s particularly suitable where universal voltage operation helps adapt to different building configurations.
Limitation: The reliance on a Ni-Cd battery may affect long-term battery life in extreme temperatures; consider replacement schedules to ensure uptime reliability.
TANLUX Red Exit Sign with 1.0 Meter Plug-in Cord
This TANLUX model features a 1.0 meter plug-in cord with Ni-Cd backup battery, providing 90 minutes of operation during outages. It supports universal voltage (120V-277V) and offers three mounting options (top, side, back) with canopy included. It’s designed for both indoor and outdoor general spaces and ships with mounting parts integrated into the housing.
Best for: Environments that prefer plug-in convenience with reliable battery-backed operation. Choose this if you want a straightforward setup with flexible mounting and no separate power supply requirements.
Caution: Check cord length and placement to avoid tripping hazards or obstruction near exits.
Amazon Basics LED Emergency Exit Sign
This double-face exit sign by Amazon Basics uses a fire retardant thermoplastic ABS housing and supports wall, ceiling, or end mounting. It runs on 120/277VAC and features Epstar SMD LED lighting with a test switch and charge indicator. The unit includes a battery backup to maintain visibility during power outages.
Best for: Budget-conscious buyers needing a reliable, dual-face exit sign suitable for high-traffic areas where visibility from multiple directions matters. It’s a practical, lower-cost option with battery backup.
Limitation: The price point may come with basic features; for more advanced controls, larger facilities might consider higher-end models with advanced diagnostics.
CM MZY Emergency Exit Sign
The CM MZY sign is a red, double-face exit sign with a built-in Ni-Cd battery backup. It operates on 120V/277V AC and offers three mounting options: top, side, and back with canopy included. It is UL-listed and designed to deliver bright visibility from distance, serving as a standard emergency lighting component in many commercial spaces.
Best for: Facilities requiring a UL-listed, two-faced battery-backed exit sign with flexible mounting options. It provides dependable performance for multi-directional visibility in corridors and lobbies.
Limitation: As with many battery-backed units, battery life depends on usage patterns and temperature; plan periodic battery checks and replacements as part of maintenance planning.
Buying Guide
What should I look for in a battery-backed exit sign?
- Battery type and run-time: Ni-Cd and Ni-MH are common; verify minimum 90 minutes of emergency operation.
- UL listing and safety standards: Ensure UL 924 and related code compliance for your building type.
- Mounting flexibility: Top, side, and back mounting options improve placement in various spaces.
- Face design: Single-face vs. double-face affects visibility in corridors or wide rooms.
- Voltage compatibility: Look for universal 120/277V options for easy integration.
Single-face vs. double-face: which is better?
Double-face signs provide visibility from more directions, which is useful in wide hallways and larger rooms. Single-face signs save on cost and are appropriate when only one side is visible to occupants.
Durability and installation considerations
- Material: Thermoplastic housings are common and lightweight; metal variants may offer added durability.
- Indoor vs. damp location suitability: Choose signs rated for the location’s humidity and temperature range.
- Installation practicality: Look for signs with canopy inclusion and clear mounting hardware to speed up setup.
Maintenance tips
- Schedule battery checks at least once a year to ensure readiness for emergencies.
- Test switches during maintenance to confirm the battery and LEDs operate correctly.
- Inspect seals and mounting hardware to prevent loosening due to vibrations or tampering.
Which sign should you choose?
- Best overall value with strong battery backup and flexible mounting: Lithonia Lighting EXRG.
- Best for universal voltage environments with a plug-in option: TANLUX Red Exit Sign with 1.0 Meter Cord.
- Best for dual-face visibility on a budget: Amazon Basics LED Emergency Exit Sign.
- Best UL-listed option with multiple mounting choices: CM MZY Emergency Exit Sign.
FAQ
- Do battery-backed exit signs require maintenance? Yes, perform regular battery tests and sensor checks per manufacturer guidelines.
- What does UL-listed mean for an exit sign? It indicates compliance with safety standards for emergency lighting and power systems.
- Can I install these signs outdoors? Most are designed for indoor use; check product ratings for damp location suitability or weather resistance.
- What is the typical run-time for battery backup? Most provide at least 90 minutes of operation during a power outage.
- Are double-face signs worth it? Yes, in corridors or wide spaces where occupants approach from multiple directions.
- How do I know which mounting option to choose? Consider sightlines, ceiling height, and the space’s layout to ensure optimal visibility.