E27 (ES) LED GLS Bulb 4.9W 470lm Non-Dimmable - Daylight 6500K - JCB

A 4.9W LED bulb in the familiar GLS shape, the rounded household bulb that has sat in pendants and table lamps for decades. It draws 4.9W and gives 470 lumens, which the pack rates against a 40W filament bulb, so it sits in the gentler half of general household lighting rather than flooding a room. The colour temperature is 6500K, the coolest of the standard white options and the one sold as daylight. The cap is E27, the larger of the two screw fittings in common UK use, and the lamp is LED throughout with an F energy rating.

Daylight white is a working light rather than a restful one. It suits kitchens, utility rooms, garages, workshops and home offices, anywhere you want to judge colour accurately or read small print without straining. The 180 degree beam spreads light across a wide arc rather than throwing it in one direction, so it works in an open shade, a downward facing pendant or a plain batten holder. Before ordering, check the old bulb: an E27 thread measures about 27mm across, while the smaller E14 measures about 14mm and will not screw in.

This bulb is not dimmable, so fit it to an ordinary on and off switch; on a dimmer circuit an LED of this type can flicker, buzz or fail to strike at all. It carries an IP20 rating, which is the ordinary indoor rating for a household lamp with no protection against water. The pack states a life of up to 10 years. Each unit is one bulb, and the minimum order is 12, sold in multiples of 12, which makes sense if you are relamping a whole house or keeping spares. Our wider range runs to B22 bayonet and E14 screw caps as well, in candle, golf and GLS shapes, in warm white, cool white and daylight.

Which light fittings take an E27 cap?

E27, also written ES, is the larger screw cap used on most pendant sets, standard lamps and table lamps sold in the UK. The thread measures roughly 27mm across, so hold the old bulb up before you order.

Can I use this bulb on a dimmer switch?

No. The specification lists it as non-dimmable, so it needs a plain on and off switch. Wired to a dimmer it may flicker, buzz or simply not light, and running it that way can shorten its life.

How bright is 470 lumens in a real room?

The pack rates it as a 40W replacement, so it is a comfortable level for a bedside lamp, a hallway pendant or a small shade. For a main kitchen or living room light most people want 800 lumens or more.

What does 6500K daylight white actually look like?

It is a crisp, slightly blue leaning white, much cooler than the yellow 2700K to 3000K warm white most people use in living rooms. It makes colours and small detail easier to read, which is why it suits work areas.

Will it run on normal UK mains?

Yes. It is built for a 220 to 240V mains supply, so it drops straight into an existing E27 holder with no driver, transformer or other extra hardware needed.

How many bulbs do I receive?

One bulb per unit. The minimum order on this listing is 12 units, sold in multiples of 12, so the smallest order you can place is a dozen single bulbs.