E27 GLS LED Bulb 4W Filament ST64 320° 250lm - Warm White

This E27 LED bulb pairs the familiar Edison Screw cap with an ST64 teardrop glass and visible LED filaments for a clear, vintage look. It draws 4 watts and gives 250 lumens, with a 320 degree spread that throws light almost all the way around the bulb rather than in a single direction. The 1800K super warm white tone is a deep amber glow, much warmer than a standard warm white, and the Ra 80 colour rendering keeps wood, brass and warm interiors looking natural. For anyone shopping in US terms, this is a decorative filament light bulb on a standard medium screw base.

Because the filaments are on show through the clear amber glass, this bulb works best where the bulb itself is part of the look. It suits open pendants, exposed batten holders, cage fittings, wall brackets and table or floor lamps in living rooms, dining areas, hallways and bedrooms. At 250 lumens the output is gentle and atmospheric rather than bright task light, so it earns its place as accent and mood lighting, often in a cluster or a multi-lamp fitting where several bulbs build the level together. Being IP20 rated, it is for dry indoor use only and should be kept out of bathrooms, porches and any damp or outdoor spot.

The ST64 light source measures 64 mm across and 140 mm long, weighs 44 grams and runs on 220 to 240 volts AC straight from a standard E27 holder, so no transformer is needed. It is non-dimmable, so it should be used on a plain on and off circuit rather than a dimmer switch. The rated life is 15,000 hours and efficiency is 63 lumens per watt. The amber filament styling and clear glass give a soft retro finish. This bulb is part of a wider Niori E27 filament range, with matching shapes available to suit the same vintage fittings.

Product Specification Sheet

Range Datasheet

What fitting does this bulb need?

It has an E27 Edison Screw cap, also called ES, which is the larger of the two common screw fittings. It twists straight into any standard E27 holder and needs no adaptor or transformer, running directly from a 220 to 240 volt AC mains supply.

What old bulb wattage does it replace?

This is a decorative 4W filament bulb giving 250 lumens, so it sits at the gentle, atmospheric end rather than matching a bright incandescent. It is designed for mood and accent lighting in open or multi-lamp fittings rather than as a sole source of bright task light in a room.

Is this bulb dimmable?

No, it is non-dimmable. Use it on a standard on and off circuit and avoid pairing it with a dimmer switch, as dimming a non-dimmable bulb can cause flicker, buzzing or a shortened life.

What does the 1800K colour look like?

1800K is a super warm white, a deep amber glow that is noticeably warmer and cosier than a typical 2700K warm white. With Ra 80 colour rendering it gives a soft, candle-like light that flatters wood tones and warm interiors, which suits the visible filament styling.