ILP CV4-3L-U-40-FRAL Cavern Stairwell LED Light 4000K, 22 Watt, 3373 Lumens, Frosted Acrylic Lens

The ILP CV4-3L-U-40-FRAL Cavern stairwell LED luminaire provides consistent, low-maintenance illumination for interior stair enclosures. Delivering 3373 lumens at 4000K with high efficacy, this 22-watt fixture is designed to replace traditional stairwell lighting while converting to energy-efficient operation. The frosted acrylic lens helps produce a uniform, glare-controlled beam, enhancing visibility in vertical circulation areas without creating hotspots. The unit is available in 2-foot and 4-foot configurations and can be mounted on either walls or ceilings to match existing architectural footprints, reducing painting and retrofit work.

Construction features include an aluminum housing with end plates and a durable white finish, with options for post-paint or baked-on enamel coatings depending on the model. The design supports durable, long-term use in damp or dry locations and is ETL listed. The fixture is designed for easy integration into larger lighting schemes with a 0–10V dimmable driver (100% to 10%), universal voltage operation (120–277V), and the option for an integral emergency battery backup to maintain light during power interruptions. With a Color Rendering Index greater than 80 and CCT options from 3000K to 5000K, the fixture provides good color differentiation and consistency across a broad range of environments.

The CV4-3L-U-40-FRAL is DLC Premium qualified, which supports energy efficiency incentives and ensures compatibility with many building controls and design standards. Practical considerations include fixture size and footprint coverage designed to fit existing 2-foot or 4-foot stairwell installations without repainting, as well as the availability of an ultrasonic sensor option for extended sensing ranges. This luminaire is suitable for commercial stairwells seeking reliable, long-life illumination with flexible mounting, dimming, and emergency backup options.

Features:

• 2 ft and 4 ft Stairwell Fixture
• 7.5? Width to Cover Existing Footprints (No Painting)
• Wall or Ceiling Mount
• White Finish with Optional Custom Colors
• Ultrasonic Sensor Option for Maximum Sensing Range
• Impact Resistant Frosted Acrylic Lens
• High Efficacy up to 157 lm/W
• 4000K CCT
• CRI >80
• L70 >100,000 hrs
• 0–10V Dimmable Driver
• 120–277V Universal Voltage
• Optional Integral Emergency Battery Backups
• ADA Compliant Luminaire
• 5 Year Warranty
• ETL Listed for Damp & Dry Location
• DesignLights Consortium Premium Qualified