Osram LED Star Flat - E27 - 3.5W - 4000K - White
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Lights.co.ukOsram Led Star Flat E27 3.5W 4,000K 3-Step Dimmable Interchangeable Ring
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Osram Led Star Flat E27 3.5W 2,700K 3-Step Dimmable Interchangeable Ring£4.99 delivery£8.90Visit shop →
Product Information
Full details
The Osram LED Star Flat bulb is designed for users seeking a compact, stylish, and energy-efficient lighting solution for shield-less fixtures. Its key benefit is its flat, modern aesthetic and customizable appearance with interchangeable rings, offering a significant upgrade over traditional bulbs. A minor caveat is its 'G' energy efficiency rating, which is standard for many LED bulbs but could be a consideration for those prioritizing the highest energy savings.
All features
| Colour | White |
|---|---|
| Energy Efficiency | G |
| Model Part Number | 4058075840058 |
| Brand | Osram |
Extended Product Information
FAQs
How does the three-step dimming work?
The bulb has three preset brightness levels. By turning the standard light switch off and on within a short period (usually 1-2 seconds), you can cycle through the dimming steps (e.g., 100% -> 50% -> 20% brightness).
Can I use this bulb with my existing dimmer switch?
No, this bulb is designed to work with standard on/off light switches only. It is not compatible with traditional dimmer switches. Using it with a dimmer may cause damage or malfunction.
What does 'E27 base' mean?
E27 refers to the Edison screw base type, which is a common size for light bulbs. It has a diameter of 27mm. This bulb fits standard E27 sockets.
How long will this bulb last?
The Osram LED Star Flat bulb has a rated lifespan of up to 25,000 hours, offering long-term illumination and reducing the need for frequent replacements.
Can I use this bulb outdoors?
Yes, but only in fixtures that are rated IP65 or higher. This rating ensures the fixture is protected against dust and low-pressure water jets, making it suitable for outdoor environments when used in the correct housing.
What colors do the interchangeable rings come in?
The bulb comes with interchangeable rings in both black and white, allowing you to customize its appearance to match your decor.
What is the color temperature of the light?
The light color temperature is 4000 Kelvin (K), which is considered a cool white light. This provides a bright and neutral illumination.
Troubleshooting
Bulb does not turn on.
Ensure the bulb is screwed in correctly and the fixture has power. Check the circuit breaker. Try the bulb in a different known working E27 fixture.
Dimming function not working.
Confirm you are using a standard on/off light switch and not a dimmer switch. Cycle the switch off and on quickly to change brightness levels. Ensure the bulb is fully seated in the socket.
Light flickers.
Check for a loose connection at the bulb socket or in the wiring. If the issue persists, the bulb may be faulty. Contact customer support.
Poor light quality or color rendering.
Verify the bulb is clean and undamaged. The CRI of 80 is suitable for general lighting; for applications requiring extremely accurate color representation, a higher CRI bulb might be needed.
Pros and Cons
Pros
- Stylish, modern, and compact design perfect for exposed bulbs.
- Customizable with included color rings for enhanced decor matching.
- Convenient three-step dimming via a standard light switch.
- Long lifespan reduces maintenance and replacement costs.
- Energy-efficient LED technology.
Cons
- Energy efficiency rating is 'G', which is standard but not the highest available.
- Cool white light (4000K) might be too stark for some ambient lighting applications.
- Not compatible with traditional dimmer switches.
- Requires suitable IP65 fixtures for outdoor use.
Setup, Compatibility & Care
Setup:
- Ensure the power to the light fixture is switched off.
- Remove the old bulb.
- Screw the Osram LED Star Flat bulb into the E27 socket until snug.
- Turn on the power to the fixture.
Compatibility:
- Base Type: E27 standard screw base.
- Switching: Compatible with standard on/off light switches for three-step dimming. Not compatible with traditional dimmer switches.
- Outdoor Use: Requires IP65 rated fixtures for protection against dust and water jets.
Care:
- Always switch off the power before cleaning.
- Wipe the bulb gently with a dry or slightly damp soft cloth. Avoid using abrasive cleaners or solvents.
- Ensure the bulb is cool before handling.