Key Features
- Built-in ballast eliminates the need for external control gear, simplifying installation
- Available in 125W, 250W, and 500W versions to suit various illumination requirements
- Standard Edison screw bases (E27/E40) provide universal compatibility
- Vibration-resistant construction designed for maritime applications
- Operates on 110V/220V AC power supplies commonly found on ships
- Average rated life of 12,000 hours reduces replacement frequency
- Steady, flicker-free light output with high luminous efficacy
- IP-rated outer bulb protects against moisture and salt corrosion
Technical Specifications
| Parameter | Specification |
|---|---|
| Type | Self Ballasted Mercury Lamp – BHF |
| Wattage Options | 125W / 250W / 500W |
| Voltage Range | 110V AC or 220V AC (Make selection) |
| Base Type | E27 (125W), E40 (250W/500W) |
| Color Temperature | 4100K (Cool White) |
| Luminous Flux | Wattage dependent; 125W = 4,500 lm | 250W = 9,500 lm | 500W = 20,500 lm |
| Average Life Span | 12,000 hours |
| CRI | ≥ 55 |
| Start Time | < 5 minutes to full output |
| Operating Temperature | -20°C to +50°C |
| Bulb Finish | Clear or frosted |
| Certifications | CE / 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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