LED Linear High Bay | 43K Lm Max | 120/277V | 5.000K | Essentials Series 4.0 | LinmoreLED ES4

Deliver extreme thermal endurance, architectural versatility, and an optimized total cost of ownership (TCO) to demanding industrial interiors with the Essentials Series 4.0 (ES4) High Bay. Engineered to excel in high-clearance structures, this next-generation LED high bay shifts away from traditional rigid overhead layouts by incorporating an innovative structural configuration with field-adjustable rotatable outer LED modules. Lighting designers, installers, and facility managers can manually adjust these outer wing modules to preset mechanical stops at 45°, 90°, and 135° (factory set at 0°). This field flexibility makes it easy to sculpt customized light distribution patterns on the fly, whether flooding wide open logistics grids or channeling tightly focused light paths down narrow warehouse aisles. The ES4 high bay is built around a heavy-duty, industrial-grade core featuring premium extruded aluminum heat sinks paired with an advanced driver compartment. To eliminate localized hot spots and maximize efficiency, the high-performance LED boards are secured to the heat sink using a high-conductivity thermal adhesive instead of standard mechanical screws. This design choice decreases LED junction temperatures and ensures exceptional lumen maintenance. The electrical foundation uses durable FR4 PCBs engineered to match the coefficient of thermal expansion between the individual LEDs and the board, significantly reducing thermal strain on solder joints during rapid power cycles. Built for ultimate accessibility, the integrated wireway cover features a captured, heavy-duty hinge that opens over 120° for hands-free wiring access during rough-in installation. Extreme Thermal Performance & Advanced Infrastructure Controls: Engineered to perform in severe physical environments, the Essentials Series 4.0 withstands constant operating temperatures from a freezing -40°F up to an industry-leading 149°F (65°C). It handles universal standard utility power lines across 120-277V or heavy-duty high-voltage feeds at 347-480V (50/60Hz) with an exceptional power factor rating of up to 0.99. The high bay delivers standard 0-10V continuous dimming-to-off automation and comes well-protected with a baseline 6kV surge suppression network (automatically upgraded to 10kV on all high-voltage configurations). For critical facility safety, it supports dual factory-installed emergency battery backups (EMB and EMB2) that deliver up to 3600 initial lumens for a minimum of 90 minutes during unexpected power failures. Key Applications: Industrial Manufacturing & Steel Mills: Delivers reliable, continuous performance under high ambient ceiling temperatures up to 149°F. High-Bay Distribution Centers & Warehouses: Uses rotatable modules and specialized aisle lenses to guide high-footcandle light precisely down tall racking lanes. Commercial Aviation Hangars & Shipyards: Provides a strong structural frame with clean color rendering over expansive, unconditioned spaces. Indoor Sports Complexes & Convention Arenas: Combines high-impact IK08 protection with optional factory wire guards to withstand demanding recreational activities. Technical Specification Table Technical Specification Product Details (Essentials Series 4.0 Family Profile) Series Model Family Essentials Series 4.0 (ES4) High Bay Product Category Heavy-Industrial Low Bay and High Bay LED Luminaire Module Adjustability Field-Rotatable Outer Wings with Locking Stops at 45° / 90° / 135° Heat Sink Core Extruded Aluminum with High-Conductivity Screwless Thermal Adhesive PCB Board Build Stress-Limiting FR4 matching LED Thermal Expansion Coefficient Input Operating Voltage Low-Voltage: 120-277V or High-Voltage: 347-480V (50/60Hz Alignment) Power Factor / THD 0.96–0.99 Typical Power Factor / 10% Typical THD (<20% Max) Dimming Integration 0-10V Standard Analog Control Loop (Dim-to-Off Capability) Surge Suppression 6kV Driver Protection Standard; 10kV Auto-Added on 347-480V Models Color Temperature (CCT) 3500K / 4000K / 5000K Standard (Custom Profiles Optional) Color Rendering Index (CRI) >80 Standard Baseline Calibration Lens Shield Options UV-Stable Polycarbonate (Clear/Aisle) or Frosted Acrylic (PMMA) Ambient Thermal Range -40°C to +65°C (-40°F to +149°F) Maximum Continuous Rating Standard Ingress Shielding Interior Dry/Damp Environments Standard (IP4X Rating) Optional Environmental Upgrades Dust-Proof (IP5X Upgrade); Wet Location Certification Capable Impact / Mechanical Safety IK08 Impact Certified; Optional Factory-Installed Wire Guards Wiring Entry Points Center 3/4” Stem Mount Hole & 1/2” Knockout near top end Hinged Maintenance Port 120° Captured Hands-Free Access Wireway Flange Mounting Compatibility Cable Ready (CRM), 3/4" Threaded Stem, Rigid Hook, or Surface MBR* Optional Integrated Sensors Factory-Installed Wattstopper / IR-TEC or EZ-Connect™ Twist-Lock Port Network Smart Controls UltraLink Wireless Bluetooth® Mesh NLC (Factory or EZ-Connect Field Setup) Testing Standards Compliance LM-79, LM-80, TM-21 IESNA Records; Title 47 CFR 15 Class A, ICES-005 Safety Certifications ETL Listed to UL 1598 Standards, CSA 22.2 Certified, RoHS Compliant *Note: Utilizing the optional MBR surface mount bracket flush against an electrical junction box restricts the fixture's maximum ambient thermal operating threshold by 5°C Emergency Battery Backup (EMB) Performance Profiles Emergency Battery Option Power Input Footprint Initial Emergency Light Output Sustained Light Output (90-Min Min) Voltage Class Availability EMB Standard Core 16 Watts Initial Load ~2,200 Lumens ~2,000 Lumens Low-Voltage & High-Voltage EMB2 High-Output 20 Watts Initial Load ~3,600 Lumens ~2,200 Lumens Low-Voltage (120-277V) Only