Description
LEDVANCE SYLVANIA 66311 4ft Wide Body LED Vapor Tight Fixture — Dual Selectable
The LEDVANCE SYLVANIA 66311 is a 4-foot wide body LED vapor tight fixture delivering 18,720 / 21,420 / 24,000 lumens with field-selectable 120W / 140W / 160W wattage and selectable 3500K / 4000K / 5000K color temperature. It operates on a universal 120-347V driver with 0-10V dimming compatibility. Rated IP66, NEMA4X, and UL Wet Location listed, this fixture is engineered for long-life, high-output performance in commercial and industrial environments.
Key Features
- Selectable Wattage: 120W / 140W / 160W
- Selectable CCT: 3500K / 4000K / 5000K
- Delivered Lumens: 18,720 / 21,420 / 24,000 lm
- Voltage: 120-347V universal input
- Dimming: 0-10V dimmable
- Power Factor: >90%
- THD: <20%
- Surge Protection: 6kV
- Auxiliary Output: Internal 12V output for controls
- Environmental Rating: IP66, NEMA4X, UL Wet Rated
- Impact Rating: IK08
- Certifications: UL1598 (cULus), RoHS, FCC, DLC 5.1 Premium, NSF Splash Zone
- Rated Life: 125,000 hours (L70)
- Operating Temperature: -40°F to +122°F
- Warranty: 5-Year Limited Warranty, NLB Trusted Warranty Program
Typical Applications
- Parking garages
- Manufacturing and warehouses
- Utility corridors
- Industrial facilities
- Loading docks and stairwells
Performance & Light Output
Selectable output delivers 18,720 lumens at 120W, 21,420 lumens at 140W, and 24,000 lumens at 160W, offering contractors flexibility to match illumination levels to application requirements.
Electrical & Controls
Operates on 120-347V, with power factor >90% and THD <20%. Integrated 6kV surge suppression and auxiliary 12V output support advanced control options. Standard 0-10V dimming compatibility is included.
Construction & Durability
Heavy-duty housing and UV-stabilized components protect against moisture and dust intrusion. IP66 and NEMA4X ratings ensure dependable performance in wet and harsh environments. IK08 impact resistance adds mechanical durability.
Installation & Mounting
Designed for surface mounting or suspension. Stainless steel mounting brackets and V-hooks are included for flexible installation.
Included
- Stainless steel mounting brackets
- V-hooks for suspension






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