4' Linear LED Stairwell Corner Light with Battery Backup - 5,400 Lumens - 5000K
Part Number:
CRN4-50K45-EM
Manufacturer Part Number:
$199.99
ea.
Was
Out of Stock, Expected 06/20/25
Backorder Available
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Features
- Built-in battery backup with 90+ minutes of emergency lighting
- 24-hour full recharge time
- Removable lens for easy access to internal elements
- DLC 5.1 Premium
In-House Test Lab
Each of our products undergoes rigorous testing in our in-house test lab to verify quality and specifications.
Hassle-Free Returns & Exchanges
Industry-Leading 45-Day Return & 90-Day Exchange Policies*
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If you're looking for a customized, energy-efficient lighting layout, our industrial & commercial lighting experts can provide an assessment tailored to your floorplan.
Related Products
Overview
The 4' Linear LED Stairwell Corner Light provides 90+ minutes of emergency illumination during power failures, ensuring safety in stairwells, corridors, and utility areas. Its curved, frosted polycarbonate lens evenly disperses light across a 120° beam. This versatile fixture is ideal for spaces with low ceilings, offering flexible installation via included wall or ceiling mounting hardware. It features six 1/2" trade-size conduit knockouts for easy wiring and a built-in self-test switch to monitor the battery backup system. The LiFePO4 battery ensures reliable performance, making this fixture a dependable choice for critical lighting.
Product Details:
- Fixture has six 1/2“ trade size conduit knockouts
- 120° beam
- 0-10 V Dimming
- Designed for wall or ceiling surface mounting
- 120-277 VAC
- Certified by UL
- DLC 5.1 Premium
- 5-year warranty on the fixture, 2-year warranty on battery
Documents
CRN4 Specification Sheet 
CRN4-50K45-EM IES File Applications:
- Corridors
- Dormitories
- Hallways
- Hospitals
- Laundry Facilities
- Schools
- Stairwells and Public Corridors
- Utility Lighting
Super Bright LEDs, Inc. offers a 5-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. In the case the exact product is no longer available, a gift card for the value of the original purchase price will be provided. Super Bright LEDs administers all warranty claims in-house. Read More
This product has been certified by Underwriter Laboratories to their engineering and safety standards.
This product meets higher lumen and efficacy standards than are required for a normal DLC® classification. This classification also requires submission of a driver IN-SITU temperature measurement test (ISTMT) along with information regarding integral controls.
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Specifications
| Ambient Operating Temperature | 0 to 50 °C (32 to 122 °F) |
|---|---|
| Battery Type | LiFePO4 |
| Beam Angle | 120° |
| Brand | Super Bright LEDs |
|
CCT
CCT
|
5000K |
|
Certifications/Compliance
Certifications/Compliance
Standards and certifications comprise a vast number of companies and compliances that serve specific purposes—primarily addressing safety, environmental impact and energy efficiency, and sanitation. They are divided into categories for each product type and certification type to allow for very specific qualifications related to each product. When this system is being used as intended, it gives consumers, installers, suppliers, and anyone else that may be involved confidence that the product is safe and will work well in their application. The most common UL and ETL certifications relate to safety and installation, although they do also provide some sanitation-related certifications (using NSF standards). Another common certification body is the DLC, which specializes in certifying the performance of a light—mainly related to environmental impact and electrical efficiency. Learn more about different certification types here . |
Certified by UL, DLC Premium |
|
CRI
CRI
|
80+ |
|
Current Draw
Current Draw
Current draw is calculated using the following formula: W/V = A, where W = the amount of power your light needs (wattage), V is the electrical system voltage (e.g., 120V AC), and A = amps. An ampere or amp (A) is the standard unit for electrical current. A milliamp (mA) equals one-thousandth of an amp, or 1000 mA is equivalent to 1 A.
Choosing LED fixtures with the correct amperage ensures safe and proper operation, preventing damage or injury. We recommend having all electrical components and fixtures installed by a certified professional electrician or lighting technician in compliance with all relevant standards and regulations. |
380 mA @ 120 VAC, 160 mA @ 277 VAC |
| Dimensions | 4ft |
| Dimmable | Yes |
|
Dimmer Type
Dimmer Type
|
0-10V |
| Efficacy | 120 lm/W |
| Emergency Operation Time | 90+ Minutes |
|
Environmental Rating
Environmental Rating
|
Non-weatherproof, Suitable for Damp Locations |
| Equivalency | 2-lamp 32W T8 Tubes |
| Finish | White |
| Input Connection Type | Pigtail |
| Integrated Surge Protection | 2 kV |
|
IP Rating
IP Rating
|
IP20 |
| LED Color | Cool White |
| Rated Life (L70) | 100000 Hours |
| Length | 48 in. (4 ft) |
| Lens Color | Frosted |
| Lens Type | Polycarbonate |
| Linkable | No |
| Lumens | 5400 Lumens |
| Microwave Motion Sensor | None |
| Operating Voltage | 120-277 VAC |
| Power Factor | ≥0.9 |
| Product Materials | Polycarbonate Lens, Steel Housing |
| Recharge Time | 24 Hours |
| UL File Number | E366643 |
| Warranty | 5 Year |
| Wattage | 45 Watts |
| Wire Gauge | 18 AWG |
Accessories & Power Supplies
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