E27 Golf Ball 3.4W LED Bulb - Cool White

This E27 golf ball LED bulb takes the small, rounded G45 shape and fits the standard E27 Edison Screw (ES) cap. It draws just 3.4 W while putting out 470 lumens, replacing an old 40 W bulb at a fraction of the energy. The light is a crisp 4000K cool white with a wide 150 degree beam angle, so it spreads evenly rather than throwing a narrow pool. American buyers shopping for a small-base bulb will recognise the screw-fit Edison cap, sized E27 here rather than the US standard.

Being a compact golf ball shape, it suits fittings where a full-size GLS bulb looks oversized, such as smaller pendants, wall lights, bedside lamps and decorative multi-arm fixtures. The wide beam and cool white tone make it a practical pick for kitchens, home offices and utility spaces where clear, neutral light helps with tasks. With a 25,000 hour rated lifespan it is well suited to fittings that stay on for long stretches or sit in awkward-to-reach positions. This is an indoor bulb only, so keep it clear of outdoor fittings, porches, bathrooms and any damp location.

The bulb runs on 220 to 240 V AC mains and measures Ø45 by 77 mm with a 20 g weight, so it slots into tight enclosures comfortably. It delivers a high colour rendering of Ra 90, meaning colours look true and natural under its light, and reaches an efficiency of 138 lm/W. The housing carries a white finish over the G45 form. This bulb is non-dimmable, so pair it with a standard on/off switch rather than a dimmer circuit. It sits within our wider range of E27 and E14 LED bulbs in several shapes and tones.

Product Specification Sheet

Range Datasheet

Which fitting does this bulb need?

It uses an E27 Edison Screw (ES) cap, the larger screw-fit base. Simply screw it into any standard E27 lampholder. It will not fit smaller E14 or bayonet fittings.

What old bulb wattage does it replace?

It draws only 3.4 W yet replaces a 40 W traditional bulb, giving 470 lumens of light. The LED itself uses far less power, so you get the same brightness for a small fraction of the energy.

Is this bulb dimmable?

No, this is a non-dimmable bulb. Use it with a standard on/off switch rather than a dimmer, as fitting it to a dimmer circuit can cause flicker or shorten its life.

How long does it last and how much energy does it save?

It is rated for 25,000 hours of use, far longer than an old incandescent bulb. At 3.4 W for 470 lumens it reaches 138 lm/W, so running costs stay low across that lifespan.