The Aleo STL-4UXH/8CT XE G4-OSDL/HF-BAA is a high-performance LED stairwell strip luminaire designed for safety and energy efficiency in stairwells, hallways, and corridors. It features field-adjustable color temperatures (3500K, 4000K, 5000K) and selectable wattage settings (25W, 34W, 40W), delivering up to 5880 lumens with efficacy up to 154 lm/W. The fixture includes a high-frequency multi-level occupancy sensor for enhanced security and continuous 0-10V dimming. Rated for 75,000 hours of operation, it offers a CRI of 83+, universal input voltage (120-277V), and is compliant with the Buy American Act. The luminaire supports surface or suspended mounting and is constructed for durability in commercial environments. Emergency backup options and a 7-year limited warranty are available.