Description
The JCB 14W LED GLS bulb delivers 1521 lumens of 4000K cool white light from a standard E27 Edison screw base, replacing a 100W incandescent bulb at 86% lower energy consumption. The GLS (General Lighting Service) shape fits any standard lamp holder, from table lamps and ceiling pendants to wall lights and desk fittings.
Cool white 4000K output provides a crisp, neutral light suited to kitchens, bathrooms, home offices and workshops where task visibility and colour accuracy matter. The non-dimmable driver maintains steady output without flicker, making the bulb reliable for workspaces, utility rooms and commercial applications where consistent lighting is required throughout the day.
The 180-degree beam angle provides wide, even distribution across a room rather than a focused spot, so a single bulb can light a typical 3m x 3m kitchen or bathroom without dark corners. At 60mm diameter and 120mm height, the bulb fits compact lampshades and enclosed fittings where a larger bulb would not. Rated Energy Rating F under current UK labelling, the JCB bulb carries a 15-year lifespan claim based on typical domestic use patterns.
Specification
| Weight (KG) |
0.07 |
| Width (mm) |
60 |
| Height (mm) |
120 |
| Depth (mm) |
70 |
| Wattage |
14W |
| Lumen |
1521 |
| Lamp Shape |
GLS |
| Lamp Base |
E27 |
| Energy Rating |
F |
| Kelvin |
4,000K |
| Colour Temperature |
Cool White |
| Dimmable |
No |
| Beam Angle |
180 |
| LED or Halogen |
LED |
Frequently Asked
Is this bulb dimmable?
No. This is a non-dimmable LED bulb. Installing it on a dimmer switch may cause flicker or damage to the bulb driver. If dimming is required, look for JCB dimmable LED bulbs in the same range.
What's the difference between 4000K cool white and 3000K warm white?
4000K produces a neutral, crisp white light similar to daylight through a window on an overcast day, suited to task-focused spaces like kitchens and offices. 3000K produces a warmer, softer white closer to traditional incandescent bulbs, better for living rooms and bedrooms. Choose based on the room's function.
Will this fit in an enclosed fitting or lampshade?
Yes. The 60mm diameter and 120mm height fit most standard GLS lampshades and enclosed ceiling fittings. LED bulbs generate less heat than incandescent or halogen, making them safer in enclosed spaces.
How does 1521 lumens compare to older bulb ratings?
1521 lumens is roughly equivalent to a 100W incandescent bulb. For comparison, a 60W incandescent produces around 800 lumens, and a 40W incandescent around 470 lumens. Lumens measure actual light output; wattage measures energy consumption.