2G11 LED PLL Bulb 20W 2500lm Non-Dimmable - Cool White 4000K

This is a 20W LED PLL lamp with the four pin 2G11 cap, giving 2500 lumens at 4000K cool white. It is the LED answer to the long twin tube compact fluorescent stick that has lit offices, hallways and utility spaces for years: two parallel tubes bridged at the top, with all four pins gathered into one flat base at the bottom. The pack rates it as a replacement for a 40W lamp, so a fitting keeps its familiar output while drawing around half the power.

2G11 is a specific cap, so check the old lamp rather than the fitting. Pull it out and look at the base: a PLL lamp seats flat with four pins in a row, and a 2G11 base will not fit a holder made for the 2G7 base used on the shorter PLS sticks. Lamps of this shape sit in surface mounted batten and bulkhead fittings, in slimline units over workbenches in garages and workshops, in stairwell and corridor fittings, and in older task and desk lamps. At 4000K the light reads as a clean neutral white with no yellow in it, which suits work surfaces, storage areas and anywhere you want to see detail clearly.

The pack prints a 30,000 hour life, and the specification gives an energy rating of E. The lamp is not dimmable, so run it from an ordinary switch. Each listing supplies one lamp, and the minimum order on this line is 10, sold in multiples of 10, which makes it a sensible maintenance stock for a building with several of these fittings in service. We also stock the same 2G11 LED PLL lamp in 8W, 12W, 18W and 24W, all in cool white 4000K, and the shorter 2G7 PLS lamps in 4.5W and 5W if your fitting takes that cap instead.

How do I check that my old lamp is a 2G11 type?

Take the old lamp out and look at the end it plugs into. A 2G11 lamp has four flat pins in a single row on one end, and the cap code is usually printed along the base or on the tube itself.

Will it work with the control gear already in my fitting?

The manufacturer does not state whether this lamp runs on existing fluorescent control gear or needs that gear bypassed, so have an electrician check the fitting before you commit to a quantity.

How does 2500 lumens compare with the fluorescent stick I am taking out?

The pack rates the lamp as a 40W replacement, so a fitting that held a 40W PLL stick should give a broadly similar level of light while the lamp itself draws 20W.

Can I put it on a dimmer?

No. The specification lists this lamp as not dimmable, so it needs a standard on and off switch rather than a dimmer circuit or a smart dimming module.

What does 4000K cool white actually look like?

It is a neutral white: cleaner and crisper than the yellow of a 2700K bulb, but without the blue edge of a 6500K daylight lamp. It reads well over work surfaces.

Is an IP rating given for this lamp?

The manufacturer does not state an IP rating on the specification or the retail pack, so we do not list one. The rating of the fitting the lamp sits in is the figure to check.