Product Description: General Electric LU400/T/40 High-Pressure Sodium Lamp
Illuminate projects with the power and reliability of the GE Lucalox LU400/T/40 high-pressure sodium lamp. Engineered for exceptional performance, its tubular clear design and E40 base make it a go-to choice for demanding applications.
Key Features & Benefits
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Exceptional Brightness & Efficiency
Offers around 48,000 lumens at approximately 120-123 lm/W, with more advanced “XO” variants soaring to 139–141 lm/W and 56,500 lm output. -
Prolonged Lifespan & Outstanding Lumen Maintenance
Standard models typically last up to 28,500 hours, maintaining high output over time. The “XO” high-xenon variants offer extended life—up to 45,000 hours—with up to 90% lumen maintenance, thanks to advanced amalgam and xenon-fill technology. -
Consistent Warm Light Quality
Emits a warm golden glow around 2,000 K, with a color rendering index (CRI) near 22–25, ideal for landscapes, industrial zones, and horticultural lighting. -
Robust & Easy to Use
Featuring a tubular clear envelope and E40 (Mogul) screw base, the lamp accommodates universal mounting positions and works reliably across both open and enclosed lighting fixtures. -
High Output (XO) Advantages
Lucalox™ XO technology brings significant improvements—up to 20% more lumens and enhanced resistance to voltage fluctuations—without higher energy use.
Technical Specifications
| Specification | Standard LU400/T/40 | Lucalox XO LU400/XO/T/40 |
|---|---|---|
| Wattage | 400 W nominal (≈393 W rated) | 400 W nominal (≈408 W rated) |
| Light Output | ~48,000 lm | ~56,500 lm |
| Luminous Efficiency | ~120–123 lm/W | ~139–141 lm/W |
| Average Rated Life | ~28,500 h | Up to ~45,000 h |
| Lumen Maintenance | Up to 90 % (XO) | Up to 90 % |
| Color Temperature | ~2,000 K | ~2,100 K |
| Color Rendering Index (CRI) | ~25 | ~25 |
| Base Type | E40 (GES) | E40 (GES) |
| Operating Position | Universal | Universal |
| Mercury Content | ~15.8 mg (standard) | ~19.2 mg (XO) |
| Dimensions (Max Length) | ~292 mm | ~292 mm |
| Energy Class | A+ | A++ |
| Special Features | Good efficiency & long life | Higher lumen, lifespan, high-lumen efficiency |