Energizer 8W LED PLL 4-Pin Bulb 2G11 - Cool White 4000K Non-Dimmable

The Energizer 8W LED PLL is a 2G11 4-pin bulb delivering 1000 lumens of cool white 4000K light, designed as a direct retrofit replacement for 18W compact fluorescent tubes in ceiling panels, under-cabinet lighting and recessed commercial fixtures. The 2G11 base is a 4-pin push-fit design that locks into compatible ballasts or direct-mains LED driver fittings, depending on the existing luminaire configuration.

Designed for workspaces, utility rooms, commercial corridors and retail back-of-house areas where functional task lighting is needed, the 4000K colour temperature provides a neutral cool white that sits between the warmth of domestic lighting and the clinical brightness of 6000K+ industrial fittings. The PLL (parallel linear lamp) form factor distributes light across two parallel tubes connected at one end, giving a wider beam spread than single-tube formats and reducing shadowing in shallow ceiling voids.

The bulb is rated at Energy Class E under current UK regulations, reflecting the trade-off between compact size and luminous efficiency inherent to PLL formats. The 8W draw replaces an 18W fluorescent tube, cutting energy consumption by approximately 55% while maintaining comparable lumen output. The bulb is non-dimmable and requires either a compatible LED driver or removal of the existing fluorescent ballast for direct mains connection, depending on luminaire type.

Energizer rates this bulb for a lifespan of up to 30,000 hours under typical commercial use patterns, reducing the frequency of lamp replacement in ceiling panels and recessed fittings where access requires ladders or scaffolding. The cool white tone pairs well with white or grey interiors and does not shift colour temperature as the bulb ages, unlike some older fluorescent tubes that drift towards green or yellow tones over time.

Can this replace an existing fluorescent PLL tube?

Yes, but compatibility depends on the existing luminaire. Some fittings require the fluorescent ballast to be removed or bypassed for direct mains connection to the LED driver built into this bulb. Other fittings are pre-wired for LED and accept the bulb directly. Check the luminaire manual or consult an electrician before purchase if unsure.

What wattage fluorescent tube does this replace?

This 8W LED bulb provides 1000 lumens, comparable to an 18W compact fluorescent PLL tube. The energy saving is approximately 55% while maintaining similar light output.

Is the bulb dimmable?

No. This bulb is non-dimmable and should not be used with dimmer switches or dimmable control gear. Attempting to dim it may cause flickering or early failure.

What does 4000K mean?

4000K is the colour temperature, measured in Kelvin. It produces a neutral cool white light that sits between warm domestic lighting (2700K-3000K) and bright daylight tones (5000K+). It is commonly used in offices, retail spaces and commercial kitchens.