E27 LED GLS Bulb 4.9W 470lm Non-Dimmable - Daylight 6500K - Eveready

This is a standard GLS bulb, the classic pear-shaped household lamp, built with LED components and given a smooth white finish. It draws 4.9W and returns 470 lumens, and the retail pack rates that against a 40W conventional bulb. The cap is E27, the larger of the two screw fittings, and the light it gives is daylight at 6500K: a crisp, blue-leaning white rather than the yellow of a traditional filament. The beam spreads across 220 degrees, so the light travels sideways and down rather than firing in one direction.

Daylight at this level suits places where you want to see clearly and colour accuracy matters more than atmosphere. Think of a kitchen worktop, a home office, a utility room or a workshop pendant. It is a less obvious choice for a sitting room or bedroom, where warm white around 2700K to 3000K usually reads as more restful. The GLS shape fits almost any E27 pendant, table lamp or shade that took a conventional 40W bulb, so check the old bulb for a screw thread rather than two bayonet pins before ordering.

This lamp is not dimmable, so pair it with a plain on/off switch; on a dimmer circuit it can flicker, buzz or fail early. The pack prints a 10 year life, or 10,000 hours, alongside more than 10,000 on/off switching cycles, which makes it sensible for a hallway or landing where the switch is worked hard. It carries an F on the current energy label and an IP20 rating, so it belongs in dry indoor fittings. Each unit is a single boxed bulb, and the minimum order is 5, sold in multiples of 5. It sits alongside our wider range of LED candle, golf and filament GLS bulbs in B15 and E27 fittings.

Will this fit my existing light fitting?

It takes an E27 holder, the larger screw cap measuring 27mm across the thread. Look at the old bulb: a screw thread means yes, two small pins means a bayonet holder and this one will not fit.

How bright is 4.9W compared with an old bulb?

It produces 470 lumens, and the retail pack rates that as the equivalent of a 40W conventional bulb. Lumens are the figure to compare on, since LED wattage tells you consumption rather than output.

Can I use it with a dimmer switch?

No. This lamp is listed as non-dimmable, so it needs a plain on/off switch. On a dimmer it may flicker, hum or shorten its life, and the dimmer itself can run hot.

What does 6500K daylight actually look like in a room?

Clean and white with a slight blue lean, much closer to midday light than to candlelight. The pack also prints a colour rendering index above 80, so colours stay reasonably true.

How long should it last?

The pack prints a 10 year life, or 10,000 hours, plus more than 10,000 switching cycles. That cycle figure matters in spaces where the light is flicked on and off many times a day.

Will it fit inside a small shade?

The pack prints a 60mm diameter and a 102mm overall length, the usual proportions for a GLS lamp, so measure the inside of a narrow shade or a closed lantern before you order.