G9 Capsule LED Bulb 4W Cool White

This G9 capsule LED bulb is a compact bi-pin lamp built to slot into G9 fittings in chandeliers, wall brackets and small decorative fixtures. It draws just 4W while putting out 520 lumens, replacing an old 42W bulb at a fraction of the running cost. The light is a 4000K cool white, a clean neutral tone that suits both task corners and general fittings, and the wide 320 degree beam angle spreads light almost all the way around the lamp rather than firing it in one direction. Sold across the US as a bi-pin capsule, it matches the same G9 base as the lamp it succeeds.

Because the beam wraps right around the capsule, this bulb works best in fittings that use the lamp as a near-omnidirectional point of light, such as multi-arm chandeliers, picture lights and compact pendants where the bulb is partly on show. The 4000K output keeps surfaces looking true and avoids the yellow cast of older lamps, which makes it a sensible choice for hallways, landings, kitchens and living-room accent fittings. It is an indoor bulb only, rated IP20, so keep it clear of bathrooms, porches and any damp or outdoor location. At 520 lumens it suits decorative and accent duties rather than acting as the sole light source for a large room.

The bulb measures Ø16 by 50 mm and weighs 10g, so it fits the tight enclosures G9 lamps are usually specified for. It runs on 220 to 240V AC mains through the two-pin G9 cap, with a colour rendering of Ra 80 and a rated efficiency of 130 lm/W. This is a non-dimmable lamp, so pair it with a standard non-dimming circuit. The rated life is 20,000 hours, and the white capsule body keeps the look neutral in open fittings. The wider G9 range covers the same cap in other outputs if you need to match several fittings.

Product Specification Sheet

Range Datasheet

What fitting does this bulb need?

It uses a G9 bi-pin cap, the small two-pin base found in many chandeliers, wall lights and compact decorative fixtures. The pins simply push into the matching G9 holder. It runs on standard 220 to 240V mains, so no separate transformer is required.

What old bulb wattage does it replace?

The LED draws only 4W itself but delivers 520 lumens, which is equivalent to a 42W traditional G9 capsule. You get a similar level of light for far less energy. The 4W figure is the actual power the bulb consumes.

Is this a warm or cool light?

It produces a 4000K cool white, a clean neutral tone that sits between warm white and daylight. With a colour rendering of Ra 80 it keeps colours looking natural. This makes it well suited to kitchens, hallways and task areas rather than a cosy warm setting.

Is this bulb dimmable?

No, this is a non-dimmable bulb, so it should be used on a standard non-dimming circuit. Fitting it to a dimmer can cause flicker or shorten its life. It has a rated lifespan of around 20,000 hours in normal use.