Self Ballasted Mercury Lamps Type BHF – Marine Grade Lighting

The Self Ballasted Mercury Lamp Type BHF represents a reliable lighting solution for marine environments. Designed with an integrated ballast, these lamps operate directly on standard AC lines without the need for external gear. This makes them exceptionally easy to retrofit in existing fixtures, saving both time and installation costs on board vessels. The BHF designation refers to the lamp’s specific base and internal configuration, ensuring compatibility with common marine sockets.

Constructed to withstand the harsh conditions of open water, these lamps feature a rugged quartz arc tube and a durable outer bulb. The self-ballasting technology combines the efficiency of mercury vapor with the incandescent filament, producing a bright, steady output with a characteristic cool white light. Whether used for engine room illumination, navigation light backups, or general deck lighting, these lamps offer dependable performance and a long service life.

For ship chandlers and marine engineers, the Self Ballasted Mercury Lamp Type BHF is an essential stock item. Available in multiple wattage options, it provides a cost-effective lighting solution that minimizes maintenance intervals. Upgrade your vessel’s lighting system with these robust, easy-to-install lamps, ensuring clear visibility and safety during all operations.

Key Features

Technical Specifications

ParameterSpecification
TypeSelf Ballasted Mercury Lamp – BHF
Wattage Options125W / 250W / 500W
Voltage Range110V AC or 220V AC (Make selection)
Base TypeE27 (125W), E40 (250W/500W)
Color Temperature4100K (Cool White)
Luminous FluxWattage dependent; 125W = 4,500 lm | 250W = 9,500 lm | 500W = 20,500 lm
Average Life Span12,000 hours
CRI≥ 55
Start Time< 5 minutes to full output
Operating Temperature-20°C to +50°C
Bulb FinishClear or frosted
CertificationsCE / RoHS compliant

Frequently Asked Questions

What is a self ballasted mercury lamp?

A self ballasted mercury lamp is a type of HID lamp that has an integrated ballast (usually a tungsten filament) inside the bulb, allowing it to operate directly on the mains voltage without an external ballast or ignitor.

Can these lamps be used as retrofits?

Yes, they can directly replace incandescent and mercury vapor lamps in compatible fixtures with the same base (E27 or E40) and wattage. Always check the voltage and base type before installation.

Are they suitable for marine environments?

Absolutely. The BHF type is designed with robust construction to handle vibration and saline air. However, they should be used within enclosed marine-rated luminaires that provide additional moisture protection.

How long does it take to reach full brightness?

These lamps typically require a few minutes to warm up and reach full light output. If restarted after being turned off, they may need an additional cooling period before relighting.

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