Overview
The GE 85379 LU400/H/ECO is a high-intensity discharge (HID) lamp engineered for demanding outdoor and industrial lighting applications. This 400W high-pressure sodium (HPS) Lucalox bulb delivers robust performance with 51,000 initial lumens and a warm, 2100K color temperature ideal for security, roadway, and horticultural lighting. Rated for 24,000 operating hours, the LU400/H/ECO combines efficiency with durability.
Key Features
- 400W power consumption with 51,000 initial lumens for high-output illumination
- ED18 elliptical dimple bulb shape; hard, clear glass construction
- E39 Mogul screw base for secure, standard fixture mounting
- 2100K warm color temperature with 22 CRI for natural light quality
- Universal operating position; rated for open or enclosed fixtures
- ANSI S51 ballast code; TCLP-compliant for environmental standards
- Ecolux® engineered for low operating costs and extended service life
Technical Specifications
- Power Rating: 400 Watts
- Voltage: 198V nominal
- Lamp Type: High-Pressure Sodium (HPS) / Lucalox
- Base Type: E39 Mogul screw
- Bulb Shape: ED18 elliptical dimple
- Lumens (Initial): 51,000 lm
- Lumens (Mean): 45,000 lm
- Color Temperature: 2100K
- Color Rendering Index (CRI): 22
- Rated Life: 24,000 hours
- Overall Length: 9.75 inches (247.6 mm)
- Bulb Diameter: 2.25 inches (57.1 mm)
- Light Center Length (LCL): 5.75 inches
- ANSI Ballast Code: S51
- Operating Position: Universal
- Fixture Compatibility: Open or enclosed fixtures
- Case Quantity: 12 bulbs per carton
- Material: Hard glass; contains mercury
- Certifications: TCLP-compliant
- Manufacturer: General Electric (GE Lamps)
- Catalog Number: 85379
Typical Applications
- Industrial Facilities: Large warehouses, manufacturing plants, and hard-to-reach high-bay applications
- Roadway & Street Lighting: Municipal street lights, highway illumination, and traffic area coverage
- Security Lighting: Perimeter security, parking areas, and facility surveillance zones
- Horticultural & Greenhouse: Plant growth lighting and controlled-environment agriculture
- Sports & Area Lighting: Stadium, field, and outdoor venue illumination
- Outdoor Recreation: Park and recreational facility lighting
Compatibility & Replacements
Compatible With
- Standard E39 Mogul screw base fixtures rated for 400W HPS lamps
- ANSI S51 ballast-equipped HPS lighting systems
- Enclosed and open fixture designs rated for 400W high-intensity discharge operation
- Industrial, commercial, and municipal outdoor lighting infrastructures
- Line-voltage and transformer-based HPS ballast circuits (198V nominal)
Replaces / Drop-In Replacement For
- GE 85379 Lucalox lamps (all variants)
- Similar 400W ED18 E39 HPS lamps requiring ANSI S51 ballast compatibility
- Plusrite LU400-2048 (ED18 variant)
- Equivalent 51,000 lumen HPS alternatives in horticultural and industrial applications
Works With
- GE Lucalox ballast and ignitor systems
- Standard ANSI S51 electronic and magnetic ballast units
- Photocell and time-clock controllers for automated dusk-to-dawn operation
- High-pressure sodium dimming and lighting control systems
- Municipal and industrial lighting management platforms












