Philips HPL-N 400W/542 E40 HG High Pressure Mercury Lamp

Description

The Philips HPL-N 400W is a standard high-pressure mercury vapor lamp designed for longevity and reliability in a variety of lighting applications. It produces a cool white light and features a coated ovoid outer bulb. This lamp is an excellent choice for maintaining existing installations in industrial settings, warehouses, and for street lighting. It requires a compatible 400W ballast for operation.

Specifications

• Manufacturer: Philips
• Product Series: HPL-N
• Power Rating: 400W
• Lamp Base: E40 (Goliath Edison Screw)
• Color Code: 542 (Cool White)
• Color Temperature: 4200K
• Bulb Shape: ED120 (Ellipsoidal)
• Operating Position: Universal

Label Info

• Model: HPL-N 400W/542 E40 HG
• Order Code: 180452
• EAN: 87115001804523

Application

This lamp is ideally suited for roadway lighting, industrial high-bay applications, security lighting, and general outdoor area illumination where high-efficiency is not the primary concern but replacement of existing technology is required.

Country of Origin

This product is manufactured in China (PRC).

CO2 Impact

Opting for this new-old-stock product prevents the manufacturing of a new one, saving an estimated 8.4 kg of CO2. This saving is comparable to the emissions from a 42 km car journey.

Availability

This product line is obsolete and no longer in active production. Availability is limited to existing stock. It is an ideal spare part for maintaining older lighting systems. Order now from PLC2Day for expert support and fast delivery.

FAQ

What kind of ballast is required for this HPL-N 400W lamp?

This lamp requires a specific 400W magnetic ballast designed for high-pressure mercury vapor lamps (HPL/HQL). It is not compatible with ballasts for high-pressure sodium (SON) or metal halide (HPI) lamps.

No, this is not a direct replacement. HPL and SON lamps have different electrical characteristics and require different ballasts and, in the case of SON lamps, a separate ignitor. The control gear must match the lamp type.

The rated average lifespan for a Philips HPL-N 400W lamp is approximately 20,000 hours. However, actual service life can vary depending on operating conditions such as voltage fluctuations, burning hours per start, and fixture quality.

Last Update: Friday, March 13, 2026

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