Key Features
- High-pressure sodium technology provides high luminous efficacy and low energy consumption
- T-bulb shape delivers consistent light distribution for large-area illumination
- Long average rated life of 24,000 hours minimizes maintenance and replacement costs
- Robust construction resistant to vibration and shock for reliable marine operation
- NHT lamp designation ensures compatibility with standard E40 sockets and fixtures
- Suitable for semi-enclosed and enclosed marine lighting units
Technical Specifications
| Specification | Value |
|---|---|
| Lamp Type | High Pressure Sodium (HPS) |
| Bulb Shape | T-Bulb (Tubular) |
| Base Type | E40 |
| Wattage | 400W |
| Input Voltage | 220-240V AC |
| Luminous Flux | 55,000 lm |
| Color Temperature | ~2100K |
| Average Rated Life | 24,000 hours |
| Burning Position | Universal |
| Operating Temperature | -30°C to +50°C |
Frequently Asked Questions
What does NHT stand for in a high pressure sodium T-Bulb lamp?
NHT is a standard designation for the physical and electrical characteristics of the T-bulb high pressure sodium lamp. It indicates the lamp’s shape, base size, and compatible operating parameters, ensuring it can be matched with the correct fixture and ballast.
What is the typical lifespan of this high pressure sodium lamp?
Depending on operating conditions and the ballast used, this T-Bulb NHT lamp has an average rated life of approximately 24,000 hours. Regular voltage stability and adequate cooling can help maximize its service life in marine environments.
Can this lamp be used in enclosed marine light fixtures?
Yes, the T-bulb design is suitable for both semi-enclosed and fully enclosed marine fixtures, provided the fixture is rated for the lamp’s wattage and thermal output. Always verify the fixture’s IP rating and suitability for the intended installation area.
What ballast is required for a T-Bulb NHT high pressure sodium lamp?
A compatible high pressure sodium ballast with ignitor is required. The ballast must be rated for the lamp’s wattage and your vessel’s input voltage to ensure correct starting and stable operation.
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