GU10 LED Bulb 4.6W 375lm Dimmable - Warm White 3000K, 2 Pack

This is a GU10 LED spotlight bulb rated at 4.6W and giving 375 lumens, supplied as a blister of two so a pair of fittings can be done in one go. The light is warm white at 3000K, the softer end of white light, and it sits comfortably next to older halogen spots if you are working through a ceiling one lamp at a time. The GU10 cap is the twist and lock type that runs directly on mains voltage, so there is no transformer to find space for above the ceiling.

GU10 is the cap you will find in most modern kitchen downlights, in track and spotlight bars over a worktop or island, and in display lighting inside cabinets, alcoves and shelving. Warm white at 3000K suits living rooms, hallways, landings and bedrooms, where a cooler 4000K or 6500K lamp can read as clinical. Buying in twos makes it straightforward to keep a whole run of fittings on one colour temperature, which matters more than most people expect: two lamps of different temperatures side by side in the same ceiling is obvious once you notice it, and no amount of dimming hides it.

The retail pack marks these as dimmable, so they will work with a trailing edge or LED rated dimmer. Check the dimmer's minimum load before you order, because a handful of low wattage LEDs together can draw too little for an older mains dimmer built for halogen. The pack also rates them as a 50W replacement and prints a 15 year lifespan, and the energy label puts them in class E. They are sold as a blister of two bulbs, with a minimum order of one pack. They sit within our wider range of LED bulbs, which also covers GU10, B15 (SBC) candle and 2G11 types.

Will this fit the downlights I already have?

If the old lamp has two small pins that push in and twist a quarter turn to lock, it is a GU10 and this will fit. Pins that pull straight out are a different cap.

Which dimmer switch should I use?

A trailing edge or LED rated dimmer is the safe choice. Old halogen dimmers often have a minimum load of 40W or more, which two 4.6W lamps will never reach, so flicker is the usual result.

Is 375 lumens enough to replace my halogen spots?

The pack rates it as a 50W replacement, so it is aimed at the common 50W halogen spot. In a run of four or more ceiling fittings that gives useful general light for a kitchen or hallway.

What does 3000K warm white look like?

It is a soft, slightly creamy white rather than a yellow glow, and it flatters wood, brick and warm paint colours. Cooler 4000K and 6500K lamps look sharper and are better suited to workshops.

How many bulbs do I get, and can I order just one bulb?

Each blister holds two bulbs and the minimum order is one blister, so the smallest quantity you can buy is a pair of lamps.

Is an IP rating given for this lamp?

No, the manufacturer does not state an IP rating for this bulb, so we make no claim about protection against dust or moisture. It is intended for ordinary indoor fittings.