Quantum Emergency Light with Aimable Heads - 90-Min Backup

In this review the Lithonia Lighting Quantum Emergency Light is evaluated as a compact, practical solution for commercial egress lighting. The bottom line: this unit is best for building managers and contractors who need a durable, code-compliant emergency fixture that delivers reliable illumination for up to 90 minutes. The reviewer found the dual aimable lamp heads and integrated test switch make it easy to position and maintain, and the device's thermoplastic housing and UL listings indicate it was built to last in stairwells, hallways, and business spaces.

Key Features

• 90-Minute Emergency Runtime: Provides a full 90 minutes of backup illumination to support safe egress during power loss.
• Dual Aimable Lamp Heads: Two adjustable LED heads let installers direct light where it is most needed for even coverage in corridors and stairs.
• High Light Output: Delivers a combined lumen output designed to produce uniform light distribution for safe evacuation routes.
• Durable Thermoplastic Housing: Flame-rated 5VA impact-resistant casing resists discoloration and is suitable for indoor damp locations.
• Integrated Test and Indicator: Built-in test switch and multi-color LED status indicator simplify maintenance and quick verification of battery health.
• Wide Voltage Compatibility: UVOLT 120-347V input makes the unit compatible with a variety of commercial electrical systems.

Who It's For

The Quantum emergency light is aimed at facility managers, electricians, and business owners who need a compact, code-compliant emergency fixture for stairwells, hallways, offices, and retail backrooms. Its ceiling or wall surface-mount design and junction box-compatible back plate suit typical commercial installation scenarios, while the adjustable heads make it flexible for different layouts.

Those who need decorative architectural lighting or extremely high lumen output for large open areas should look elsewhere; this model is optimized for targeted egress illumination rather than broad ambient lighting. Also, sites requiring explosion-proof or outdoor rated emergency fixtures will need a different product.

Pros & Cons

Pros

• Bright, focused illumination from two adjustable LED heads supports safe egress and positive customer feedback on lighting quality.
• Easy surface installation with a back plate that fits standard junction boxes and a simple integrated test switch.
• Durable 5VA thermoplastic housing and UL listing that meet common commercial safety codes.
• Maintenance-free Lithium Iron Phosphate battery delivers the required emergency runtime without frequent servicing.

Cons

• Some customers report mixed battery life experiences, so individual units may require attention or replacement sooner than expected.
• Fixture size drew differing opinions from customers, so verify physical dimensions for tight mounting locations.

Specifications

Our Verdict

The Quantum emergency light is a solid value for commercial applications that need straightforward, reliable egress illumination with easy installation and maintenance. Its aimable heads and code-compliant construction make it a practical pick for stairwells and hallways, though buyers should confirm the unit's dimensions for tight spaces and monitor battery condition over time.

Frequently Asked Questions

How long does the emergency battery last during a power outage?
The built-in Lithium Iron Phosphate battery is specified to provide 90 minutes of emergency runtime.

Can this unit be mounted on the ceiling as well as the wall?
Yes, the surface mount design allows installation on either ceiling or wall and the back plate fits standard junction boxes.

Is the fixture suitable for damp locations?
Yes, it is rated for indoor damp locations and operates between 50F and 104F (10C to 40C).