Product Description: Osram SON-T 400 W E40 High Pressure Sodium Lamp
Elevate your lighting game with the Osram SON-T 400 W E40 high-pressure sodium lamp—a powerhouse of brightness, reliability, and efficiency, ideal for demanding applications from industrial facilities to horticultural environments.
Key Features & Benefits
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Superior Brightness & Efficiency
Emits a striking 48,000 lm of warm, golden sodium light at approximately 2000 K with a luminous efficacy nearing 120 lm/W.
In premium “Plantastar” configurations, boosts output up to 56,500 lm and efficacy of 136 lm/W, optimized for plant growth. -
Long-Life with Consistent Performance
Rated for up to 32,000 hours of operation, ensuring maintenance cost reduction and consistent light output over time.
Retains ≥80% lumen maintenance after 16,000 hours, living up to a 4-year service lifespan under normal use. -
Reliable and Versatile Design
Features a clear tubular envelope and E40 (GES) base, compatible with open and enclosed luminaires, and suitable for universal burning positions. -
Enhanced “Plantastar” versions deliver up to 56,500 lm, about 138 lm/W, with operating life of 32,000 hours, ideal for greenhouse and growth environments.
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Eco-Conscious & Efficient
Compliant with energy regulations (e.g., ErP), and a cost-effective alternative to older mercury vapor lamps—cutting energy usage by up to 50%.
Detailed Specifications
| Specification | Details |
|---|---|
| Wattage | 400 W |
| Luminous Flux | ~48,000 lm (standard); ~56,500 lm (“Plantastar”) |
| Efficacy | ~120 lm/W; up to ~136 lm/W for horticultural versions |
| Colour Temperature | ~2000 K |
| CRI | ~20–25 |
| Average Life | Up to 32,000 hours |
| Lumen Maintenance | ≥80% after 16,000 hours |
| Base Type | E40 (GES) |
| Burning Position | Universal |
| Dimensions | ~285 mm length, ~47 mm diameter |
| Mercury Content | Typically ~3 mg (“SON-T”) to ~21.6 mg (“Plantastar”) |
| Special Versions | Dimmable variants available (“Super 4Y”) |