The ETH-HBE-4-321W is a high-output 4-foot LED Linear High Bay designed for high ceilings (25+ feet) in dry indoor environments. Delivering 42,051 lumens at 131 lumens per watt, this IP40-rated luminaire offers premium performance, smart sensor compatibility, and reliable operation over 75,000 hours.

Key Features

• High Efficiency: 131 lm/W delivering 42,051 lumens at 321W

• Smart Sensor Ready: Supports occupancy, daylight, and bi-level dimming sensors

• Durable Construction: Aluminum housing with ventilated driver bay and semi-gloss finish

• Heat Management: Multiple heat sinks for improved thermal dissipation

• Even Light Distribution: Anti-UV frosted polycarbonate lens prevents discoloration

• Mounting Options: Includes V-Hooks and Chains; optional pendant bracket available

• Optional Wire Guard: Extra protection for lens

• Emergency Backup Options: 8W or 16W 90-minute battery backups available

• Certifications: UL (U.S. & Canada), FCC, RoHS

• Warranty: 7 years / 75,000 hours

• Rebate Eligible: Listed for energy-efficient lighting rebates

Applications

Ideal for high-ceiling indoor spaces including:

• Warehouses

• Gymnasiums

• Manufacturing plants

• Packaging facilities

• Storage areas

• Aisles

• Covered loading decks (dry locations)

Specifications

Electrical

• Input Voltage: 120–277V

• Frequency: 50/60 Hz

• Wattage: 321W

• Power Factor: >0.9

• THD: ≤15%

• Dimming: 0–10V Continuous

Lighting Performance

• Lumens: 42,051

• Efficacy: 131 lm/W

• Color Temperature: 5000K

• CRI: Ra ≥80

• Rated Life (L70): 75,000 hrs

Construction & Physical

• Length: 4 Feet

• Housing: Aluminum with white semi-gloss finish

• Lens: Frosted anti-UV polycarbonate

• Protection Rating: IP40 (Dry Location)

• Operating Temp: -4°F to 122°F (-20°C to 50°C)

Included: V-Hooks and Chains
Optional: Pendant Bracket, Wire Guard, Motion/Daylight Sensors, Emergency Backup