G9 Capsule LED Bulb 3.5W Dimmable - Cool White

This G9 capsule LED bulb gives a compact, all-round source of light from a tiny bi-pin base. It draws just 3.5 watts yet stands in for a 34 watt halogen capsule, putting out 385 lumens at 4000K cool white with a CRI of Ra 80 for clean, neutral colour. The wide 320 degree beam angle spreads light almost all the way around the bulb, so it works as a near-omnidirectional source rather than a tight spot. For US buyers this is the familiar bi-pin capsule format, sized at Ø16 by 50 mm.

Because the output is broad and the bulb is small, it suits the enclosed and decorative fittings that take a G9 base, such as wall lights, small pendants, picture lights and multi-arm ceiling fittings indoors. The cool white tone reads crisp and a little brighter than warm white, which makes it a good match for kitchens, home offices and task corners where a neutral light helps with detail. In a multi-lamp fitting the 385 lumens per bulb add up quickly, so several together cover a room comfortably while a single bulb is better suited to accent or close-range work. It is rated for dry indoor use only and should be kept clear of damp or exposed locations.

The bulb measures Ø16 by 50 mm and weighs only 12 grams, so it fits neatly into compact and recessed G9 housings. It runs on 220 to 240V AC mains through the G9 bi-pin cap, with no transformer needed, and is fully dimmable on a compatible dimmer for adjustable brightness. Efficiency is 110 lm/W and rated life is 15,000 hours, which keeps replacement intervals long. It carries an IP20 rating, confirming it is intended for dry indoor fittings. This is one of several G9 capsule options in the range across different wattages and tones.

Product Specification Sheet

Range Datasheet

Which fitting does this bulb use?

It has a G9 bi-pin cap, the small two-pin push-fit base used in many compact wall lights, pendants and decorative ceiling fittings. The two pins simply push into the holder, with no screw or bayonet action. Check your fitting is marked G9 before ordering.

What old bulb wattage does it replace?

At 3.5 watts of actual draw it replaces a 34 watt halogen capsule while producing 385 lumens. The LED itself only ever uses 3.5 watts, so you get a similar light level for far less energy. Over its 15,000 hour rated life that adds up to a meaningful saving.

Is this bulb dimmable?

Yes, it is fully dimmable when used with a compatible LED dimmer switch. For smooth, flicker-free dimming pair it with a trailing-edge dimmer rated for LED loads. Older dimmers built for halogen may not give the best result.

What does the cool white 4000K tone look like?

4000K is a neutral cool white, crisper and slightly brighter in feel than warm white but without the blue cast of full daylight. It suits kitchens, home offices and task areas where a clean, accurate light is helpful. The Ra 80 colour rendering keeps everyday colours looking natural.