Round lamp - E27 clear White - Scharnberger+Has. - 43278
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Product Information
Full details
This 25W clear E27 round lamp from Scharnberger+Has. is ideal for users needing reliable, general-purpose lighting within a 110-130V range. Its key benefit is providing a consistent 180lm luminous flux with a standard E27 base. A caveat is its older energy efficiency rating (E), meaning it consumes more power than modern alternatives. Key features include its clear finish, shock-proof design, and a lifespan of approximately 1500 hours.
All features
| Colour | White |
|---|---|
| Energy Efficiency | E |
| Model Part Number | 43278 |
| Brand | Scharnberger+Has. |
Extended Product Information
FAQs
What is the lifespan of this lamp?
The average nominal lifespan of this lamp is approximately 1500 hours of use.
Can this lamp be used in a 240V system?
No, this lamp is designed specifically for input voltages between 110V and 130V. Using it in a 240V system will cause immediate failure and potential damage.
What does 'clear finish' mean for this lamp?
A clear finish means the glass of the bulb is transparent, allowing light to pass through without diffusion or coloration, providing a direct and unobstructed light output.
Is this lamp energy-efficient?
This lamp has an energy efficiency class of E (on an old scale of A++ to E), which is considered less efficient compared to modern lighting technologies like LED. Its weighted energy consumption is 25 kWh per 1000 hours.
What is the luminous flux of this bulb?
The luminous flux, or light output, of this bulb is 180 lumens (lm).
How should I dispose of this lamp?
While this is not a compact fluorescent lamp (CFL) or LED, it is recommended to check local regulations for disposal of incandescent or halogen-type bulbs. Often, they can be disposed of with regular household waste, but recycling options may be available.
Troubleshooting
Lamp does not illuminate
Ensure the lamp is screwed in properly. Check that the E27 socket is receiving power by testing with another compatible bulb. Verify the fixture's circuit breaker is on.
Lamp flickers intermittently
Check for a loose connection in the E27 socket or the fixture wiring. Ensure the voltage supply is stable and within the 110-130V range. The bulb may be nearing the end of its lifespan.
Premature bulb failure
Confirm the fixture is within the specified 110-130V range. Avoid using the lamp in applications with frequent power surges or voltage fluctuations. Check for excessive vibration or shock.
Pros and Cons
Pros
- Standard E27 fitting for broad compatibility.
- Suitable for 110-130V electrical systems.
- Clear glass provides unobstructed light.
- Shock-proof design adds durability.
- Consistent 25W power output.
Cons
- Energy efficiency class E is outdated and less efficient than newer standards.
- Lower luminous flux (180lm) compared to higher wattage or more advanced bulbs.
- Limited lifespan of 1500 hours compared to LED alternatives.
- Specific voltage range (110-130V) restricts use in other regions.
Setup, Compatibility & Care
Setup:
- Ensure the power to the light fixture is switched off.
- Gently screw the lamp into a standard E27 socket until snug. Do not overtighten.
- Verify that your fixture is compatible with the 110-130V input voltage range.
- Restore power to the fixture.
Compatibility:
- Socket: Exclusively compatible with E27 screw-in sockets.
- Voltage: Designed for use with electrical systems operating between 110V and 130V.
- Fixture Type: Suitable for dry, indoor environments. Not rated for damp or wet locations.
Care:
- Always allow the lamp to cool completely before handling.
- Clean the glass exterior with a soft, dry or slightly damp cloth. Avoid abrasive cleaners.
- Periodically check the E27 socket for dust or corrosion and clean gently if necessary.