Energizer 20W LED PLL 4-Pin Bulb 2G11 - Cool White 4000K Non-Dimmable

The Energizer 20W LED PLL bulb is a direct retrofit replacement for 40W compact fluorescent PLL lamps, delivering 2500 lumens at 4000K cool white through a 2G11 4-pin base. The twin-tube PLL format provides a broad, even spread of light suited to panel luminaires and linear fittings in commercial and institutional settings.

Designed for open-plan offices, corridors, retail back-of-house areas and clinical environments, the bulb provides consistent, flicker-free illumination across work surfaces and circulation routes. The 2G11 base fits directly into existing PLL lamp holders without rewiring or ballast bypass, making retrofit installation straightforward. The bulb operates on standard 230V mains and is rated E for energy efficiency under current UK regulations.

The 4000K colour temperature sits in the cool white band, producing a neutral tone that supports task visibility without the clinical coldness of 5000K+ daylight lamps or the warmth of 3000K domestic lighting. The non-dimmable design is optimised for installations where lighting levels remain constant throughout operating hours. At 20W the bulb consumes half the power of the 40W fluorescent it replaces while delivering comparable lumen output and longer operational life.

Does this require ballast bypass to install?

No. The Energizer PLL LED operates directly from 230V mains and is designed for plug-and-play installation in most 2G11 luminaires. Some older fluorescent fittings may require the existing ballast to be bypassed or removed — check the fixture documentation or consult a qualified electrician if unsure.

What type of fitting does this suit?

This bulb fits panel luminaires, linear ceiling fittings and downlights designed for PLL compact fluorescent lamps. Common applications include suspended ceiling panels in offices, recessed corridor lighting and commercial display cases.

What's the difference between 4000K and 3000K?

4000K is cool white with a neutral, slightly blue-toned appearance that enhances visibility and alertness in work environments. 3000K is warm white with a softer, more yellow tone typically used in residential and hospitality settings. For task-focused commercial spaces, 4000K is the more common choice.

How long does the bulb last?

Energizer LED PLL bulbs typically offer a rated lifespan significantly longer than compact fluorescent equivalents, often 25,000-30,000 hours depending on the model. Check the packaging or contact us for the specific rated life of this bulb.