Dimmable

LUSION Fancy Round Filament LED Light Bulb B15 240V 4W Warm White 20233

Lusion | SKU: 20233

$13.20

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Light Bulb Fittings

The light bulb fitting is the part of the bulb that connects it to the socket of a light fixture.

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Colour Temperature

Colour temperature is measured in Kelvin (K) – the lower the number, the warmer the white light appears, while a higher Kelvin will appear cooler. Colour temperature generally ranges from 2700-3300K (warm) to 3300-5300 (cool) – and 6500K is daylight.

Check details of colour temperature

Equivalent Wattages Between Different Light Bulbs

As long as the technology developed, a LED light bulb can only use 8 watt power but light up similar brightness when a incandescent light bulb uses 60 watt power. There is equivalent wattage between different light bulbs. To stop making confuse, you need to know what wattage equivalent to each other. See the table attached as below.

Check table chart

80%

Cutting electricity costs by up to 80% compared to incandescent bulbs.

20,000H

Rated for 20,000 hours — long-lasting performance with minimal maintenance.

Upgrade your decorative fittings and small bayonet fixtures with the LUSION Fancy Round Filament LED Light Bulb. Delivering the equivalent output of a 40W incandescent bulb at just 4W, this B15 small bayonet fancy round bulb combines the visual appeal of a visible filament with the efficiency and longevity of modern LED technology.

With a soft 2700K warm white colour temperature, 400lm output, and a wide 360° beam angle, this dimmable clear glass fancy round bulb is ideal for decorative fittings where both light quality and visual impact matter. Its 20,000-hour rated lifespan ensures long-lasting, low-maintenance performance.

Key Features:

B15 small bayonet base — suitable for small bayonet fixtures
Fancy round shape with visible filament for decorative appeal
Replaces 40W incandescent fancy round bulb at only 4W
2700K warm white — soft, inviting light for ambient and decorative use
400lm output with CRI 80 for natural colour rendering
360° omnidirectional beam angle
Full glass construction with nickel plated cap
Fully dimmable
20,000H rated lifespan
Input voltage: 240V ~ 50/60Hz

Specifications:

Fitting/Base: B15
Wattage: 4W (40W equivalent)
Voltage: 240V
Colour Temperature: 2700K
Lumen Output: 400lm
CRI: 80
Beam Angle: 360°
Rated Life: 20,000H
Finish: Clear
Dimensions: Ø45 x 80mm
Dimmable: Yes

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Frequently Asked Questions

Is this B15 Fancy Round filament LED bulb dimmable?

Yes, this LUSION Fancy Round Filament LED bulb is fully dimmable. It is compatible with most leading-edge and trailing-edge dimmer switches. We recommend testing with your specific dimmer before full installation, as compatibility can vary by brand.

What is a B15 base and what fixtures use it?

B15 is a small bayonet cap with a 15mm diameter. It is commonly used in smaller decorative fittings, bedside lamps, wall lights, and appliances. Please check your fixture's base size before purchasing, as B15 is smaller than the standard B22 bayonet base.

What fixtures is this B15 Fancy Round bulb suitable for?

This B15 fancy round filament LED bulb is ideal for small decorative fittings, bedside lamps, wall lights, and any fixture that uses a B15 small bayonet base. Its clear glass construction and visible filament make it particularly well suited to exposed and ornate fixtures where the bulb itself is part of the visual design.