LED bulb Segula 55618 Warm white 2700 K 4.5 W G9 F

The Segula 55618 Warm white 2700 K 4.5 W G9 F LED bulb delivers warm, high-quality illumination for indoor fixtures that accept a G9 fitting. This compact lamp produces about 400 lumens from 4.5 W of power, combining low energy consumption with a long rated lifespan of approximately 20,000 hours. With a colour temperature of 2700 K and a high Colour Rendering Index (CRI) of 90, it reproduces colours naturally and is suitable for living spaces where warm, comfortable light is preferred.

Advantages

The bulb offers warm white light at 2700 K and a high CRI of 90 for accurate colour rendering. Its 4.5 W power draw provides energy-efficient operation compared to equivalent incandescent bulbs while maintaining a wide 330° beam angle for broad, even illumination. The G9 fitting makes it compatible with many decorative and functional luminaires that require a small, pin-style lamp, and the long service life reduces the frequency of replacements.

Suitable for

• Table lamps and bedside lamps with G9 sockets
• Decorative fixtures and pendants that use G9 bulbs
• Bathroom vanity lights and mirror lighting (check fixture rating for humidity)
• Accent lighting where warm, natural colour rendering is desired

When it may not be suitable

This LED bulb is not suitable for fixtures that require a different cap type than G9. It may not be appropriate where higher lumen output or daylight-colour temperatures are required, for example in workspaces that demand cooler, brighter light. The product is rated in energy efficiency class F; buyers seeking the highest possible energy labels may consider alternative models.

Key specifications

• Fitting/cap type: G9
• Rated power consumption: 4.5 W
• Approximate luminous flux: 400 lm
• Colour temperature: 2700 K (warm white)
• Colour Rendering Index: 90
• Beam angle: 330°
• Rated lifetime: ~20,000 hours
• Energy efficiency class: F

How to use

Ensure the fixture is compatible with G9 lamps and is switched off before replacing bulbs. Insert the G9 pins into the socket until the lamp is secure, then restore power and test the light. Use the bulb in fixtures designed for indoor use and verify any dimmer compatibility if using a dimmable version. Follow the luminaire manufacturer’s instructions regarding maximum lamp size and heat clearance.

What to consider before purchase

• Verify the fixture accepts a G9 fitting
• Confirm the desired colour temperature is 2700 K (warm white)
• Check if a higher lumen output or different CRI is needed for your application
• Ensure fixture supports the bulb’s form factor and heat dissipation requirements

Usage recommendations

Use this Segula G9 LED bulb in indoor decorative and ambient lighting where warm, natural colour reproduction is required. For best results, match the bulb’s output and colour temperature to other lamps in the same space to maintain consistent lighting. Replace bulbs when lumen output visibly decreases or after the rated lifetime for reliable performance.