JCB 14W LED GLS Bulb B22 Warm White 3000K Non-Dimmable - 1521lm

The JCB 14W LED GLS bulb delivers 1,521 lumens of warm white 3000K light through a standard B22 bayonet cap fitting. The 14W draw replaces traditional 100W incandescent bulbs at approximately 86% lower energy consumption, while the 60mm diameter and 120mm overall height match the classic GLS (general lighting service) bulb shape that fits most household ceiling lights, table lamps and floor lamps.

Designed for fixed-brightness applications where dimming is not required, the bulb provides consistent flicker-free output across its 10,000-hour rated lifespan. The 180-degree beam angle distributes light evenly across a room, making it suitable for general ambient lighting in living rooms, bedrooms, hallways and dining areas. The B22 bayonet cap clicks into standard BC lamp holders used across most UK residential fixtures.

The warm white 3000K colour temperature sits in the lower-Kelvin range, producing a yellowish-white light similar to traditional incandescent bulbs rather than the cooler daylight tones of 4000K+ LEDs. This makes the bulb a direct retrofit for homes where the existing colour palette and interior finishes were chosen around warm incandescent lighting. The non-dimmable construction keeps the driver circuitry simpler and the bulb cost lower than dimmable equivalents, while the Energy Rating of F reflects the current EU/UK energy label scale introduced in 2021 where most LED bulbs now sit between D and G.

What wattage incandescent bulb does this replace?

The 14W LED output of 1,521 lumens is equivalent to a traditional 100W incandescent bulb. The 86% reduction in power consumption means a typical household using this bulb for 4 hours per day saves approximately £18 per year compared to a 100W incandescent at current UK energy rates.

Is this bulb dimmable?

No. The bulb is rated as non-dimmable and will not work correctly with dimmer switches. Attempting to use it on a dimmed circuit may cause flickering, reduced lifespan or immediate failure. For dimmable alternatives, see the JCB dimmable LED range or use the site filters to find other dimmable B22 GLS bulbs.

What is the expected lifespan?

JCB rates this bulb at 10,000 hours, which translates to approximately 10 years of use at an average 3 hours per day. Actual lifespan depends on operating temperature, switching frequency and mains voltage stability.

Why is the Energy Rating F when it's an LED?

The EU/UK energy label scale changed in 2021, making ratings stricter. Most LED bulbs now fall between D and G on the new scale, whereas under the old system they would have been rated A+ or A++. The F rating reflects the new benchmarks and does not indicate poor efficiency compared to other LEDs on the market.