GLT SQL 400W LED Area Light — 160/240/320/400W Selectable, 120–277V

The GLT SQL-400W-UV-T3-CC3 is a massive-output LED area light delivering up to 61,000 lumens with field-selectable 160W/240W/320W/400W output and adjustable 4000K/5000K color temperatures. Operating on a 120–277V universal driver, this large-housing fixture features precision Type III distribution to optimize forward throw illumination. Built with a UL Wet Location rating and tested to 3G vibration standards, it is engineered for exceptional durability in sprawling commercial parking lots, automotive dealerships, and high-mast perimeter lighting applications.

Key Features

• Selectable Wattage: 160W / 240W / 320W / 400W (40% / 60% / 80% / 100%)
• Selectable CCT: 4000K / 5000K (400W specific)
• Maximum Output: Up to 61,000 lumens
• Voltage: 120–277V universal input
• Dimming: 0–10V dimming standard (10% to 100%)
• Optics: Type III distribution
• Surge Protection: Built-in 10kA suppression
• Environmental Ratings: UL Wet Location listed, completely sealed against moisture
• Certifications: DLC Premium qualified, Dark Sky conformable
• Estimated Life: 100,000 hours (TM-21 calculations)

Typical Applications

• Large commercial parking lots
• Automotive dealerships and expansive display areas
• Industrial and corporate campuses
• High-mast and perimeter security lighting
• Wide pedestrian walkways and plazas

Performance & Light Output

This large-housing area light provides massive scalable illumination up to 61,000 lumens depending on the selected wattage, engineered to aggressively replace traditional 1000W+ Metal Halide luminaires. The integrated Type III optics are precisely designed to shape the light distribution, maximizing efficiency and application spacing while minimizing undesirable backlight. The high-performance LED light engines deliver consistent color and maintain a highly prolonged rated life of 100,000 hours based on TM-21 calculations. When properly mounted, the optical design can conform to dark sky requirements to eliminate upward sky glow.

Electrical & Controls

This fixture operates on a universal 120–277V AC driver with standard 0–10V dimming functionality (dimmable down to 10%) to seamlessly integrate with facility energy management systems. The robust electrical components maintain a power factor greater than 0.90 and total harmonic distortion (THD) below 20%, fortified by 10kA surge protection to defend against power anomalies. The luminaire is comprehensively controls-ready; it supports optional plug-and-play PIR or microwave occupancy sensors, Bluetooth controllers, and 3-pin or 7-pin NEMA twist-lock photocells (all sold separately) to maximize energy savings and security.

Construction & Durability

Engineered to withstand harsh outdoor environments, the luminaire features a rugged, one-piece die-cast aluminum housing finished in a corrosion-resistant dark bronze coating. The integrated heat sink hat optimizes thermal dissipation through advanced convection cooling management, actively extending the life of internal components. The fixture's low-profile design minimizes wind load, and it is 3G vibration rated to ensure structural integrity on tall poles. The optical and electrical compartments are completely sealed against moisture, carrying a UL Wet Location listing and an ambient operating temperature range of -40°C (-40°F) to a 400W-specific maximum of 40°C (104°F).

Installation & Mounting

This high-output fixture is designed for mounting heights ranging from 26 to 50 feet in area lighting applications. To accommodate diverse site requirements, the fixture requires a compatible modular mounting bracket (sold separately). Contractors can easily adapt the luminaire for the specific application by purchasing the appropriate cast aluminum slipfitter, standard versatile arm mount (for square/round poles), adjustable arm mount, wall mount, or yoke mount. Additional optional accessories like external glare shields and back light control shields are also available separately to further customize site illumination.

What's Included

• GLT SQL Series Large LED Area Light (Dark Bronze)