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The OSRAM 4.5W GU10 LED bulb delivers 475 lumens of cool white light at 4000K. Its wide 120° beam provides broad light coverage, while the GU10 twist-lock base fits compatible spotlight and downlight fittings.
Key Features
- 4.5W LED with a stated 50W replacement equivalent.
- Cool White 4000K light.
- 475-lumen light output.
- Wide 120° beam angle.
- GU10 twist-lock base.
- Instant full brightness in under 0.5 seconds.
- Rated lifespan of 15,000 hours.
- Non-dimmable.
Benefits
- Cool white light provides clear illumination.
- Wide beam spreads light across a broad area.
- Uses less electricity than the stated 50W equivalent.
- Reaches full brightness without a warm-up period.
What’s Included
1 × OSRAM LED GU10 Bulb 4.5W 475lm Cool White 4000K
How to Use
- Switch off electricity and allow the existing bulb to cool.
- Remove the old bulb from the GU10 holder.
- Align the new bulb’s pins with the holder and twist gently to secure.
- Restore power and switch on.
Compatibility/Applications
For compatible GU10 spotlight and downlight fittings operating on 220–240V AC. The fitting must accommodate a bulb measuring 50mm in diameter and 54mm in length.
Care & Maintenance
- Switch off power and allow the bulb to cool before cleaning.
- Wipe gently with a soft, dry cloth.
- Keep the base and electrical contacts dry.
Specifications
- Brand: OSRAM
- Trademark licensed to: LEDVANCE
- Range: LED ECO PAR16 50
- Model: AC73247
- Product reference: LEPAR16 50 120 4.5/840 230V GU10
- Technology: LED
- Power: 4.5W
- Stated replacement equivalent: 50W
- Light output: 475lm
- Light colour: Cool White
- Colour temperature: 4000K
- Base: GU10
- Beam angle: 120°
- Voltage: 220–240V AC
- Frequency: 50/60Hz
- Current: 49mA
- Luminous efficacy: 105lm/W
- Colour rendering index: 80
- Rated lifespan: 15,000 hours
- Switching cycles: 100,000
- Start-up time: Under 0.5 seconds
- Dimmable: No
- Diameter: 50mm
- Length: 54mm
- Operating temperature: −20°C to +45°C
- Energy efficiency class: F
Safety Information
- Switch off electricity before installing or removing the bulb.
- Allow the bulb to cool before handling.
- Do not use with dimmer switches.
- Do not use in closed or very tight fixtures.
- Do not install a damaged bulb.
- Dispose of through an appropriate electrical waste collection facility.
FAQs
What colour light does this bulb produce?
Cool white light at 4000K.
What fitting does it use?
A GU10 twist-lock fitting.
Is this bulb dimmable?
This bulb is non-dimmable.
How bright is it?
It delivers 475 lumens.
What is included?
One OSRAM 4.5W GU10 Cool White 4000K LED bulb.


