B15 LED Candle Bulb 4.2W 470lm Dimmable - Warm White 2700K - LumiLife

This is a candle bulb with a small bayonet cap, the B15 fitting: a push and twist base with two pins, noticeably narrower than the B22 bayonet found in most ceiling pendants. It draws 4.2W and gives 470 lumens at 2,700K, a warm white close in tone to the old filament candles these fittings were built for. The finish is frosted rather than clear, which softens the individual diodes into an even glow instead of leaving them as bright points, and the pack rates it as a replacement for a 40W filament candle.

Small bayonet candles tend to live in fittings that have been in the house a while: multi arm chandeliers, wall brackets, half lanterns in a hallway, and the little shaded table lamps that were sold with the cap already decided. Before ordering, pull the old bulb out and look at the base, because B15 and the small screw cap E14 sit close in size and will not swap for one another. B15 pushes in and turns; E14 threads. A frosted candle is the easier choice where the bulb sits out in the open on a chandelier arm or under a narrow clip shade, since there is no filament line to stare at from across the room.

This bulb dims, and the pack carries the dimming symbol alongside the wattage to say so. A 4.2W load is very light for a dimmer built in the filament era, so if you are keeping an old rotary switch, fit the whole fitting with LED candles rather than mixing types, and expect the useful travel to sit in the upper part of the dial. The beam spreads across 280 degrees, so light reaches the shade and the ceiling rather than shooting straight up. The pack prints a life of 25,000 hours and an energy rating of E. Each listing is one bulb, ordered in multiples of ten.

How do I tell a B15 cap from a B22 before I order?

Both push in and twist, but B15 measures about 15mm across the metal base and B22 about 22mm. Hold the old bulb next to a ruler; if it looks slim, it is almost certainly B15.

Will it dim on the switch I already have?

The bulb itself is dimmable. Whether it dims well depends on the dimmer: older units designed for filament loads often need a higher minimum load than one 4.2W candle, so fit LED candles throughout the fitting rather than mixing with filament types.

Is 470 lumens as bright as the candle bulb I am replacing?

It is the accepted equivalent of a 40W filament candle, which the pack also states. If your old bulbs were 25W you will notice more light; if they were 60W, slightly less.

What does 2,700K actually look like once it is lit?

Warm and slightly yellow, the familiar tone of traditional household lighting. It flatters wood, brass and warm paint colours, and it sits comfortably in a living room or dining room in the evening.

Why is the glass frosted rather than clear?

A frosted finish spreads the light from the diodes so the bulb reads as one soft shape. It is the better choice where the bulb is visible on an open chandelier arm or below a small shade.

How many bulbs will I receive?

One bulb per unit. The minimum order on this line is ten units, sold in multiples of ten, so the smallest purchase is ten single bulbs.