Description
This is a 4.2W LED candle bulb on a B15 small bayonet cap, the little push-and-twist fitting with two side pins rather than a screw thread. It gives 470 lumens, and the pack rates it as a 40W replacement, so the light in the room stays where it was while the power drawn falls to a fraction. The colour temperature is 2,700K warm white, the soft yellow-leaning light of the old filament bulbs. The body is plain matt white and tapers to a candle point, which suits a fitting where the bulb is on show.
A B15 cap turns up most often on smaller decorative fittings: multi-arm chandeliers, wall lights, picture lights and bedside lamps with a clip-on shade. Check the cap on the old bulb first, because B15 and the larger B22 look alike at a glance and B15 has the narrower pin spacing. The beam angle is 240 degrees, so light leaves the bulb almost all the way round rather than in a forward cone, which is what a fabric shade or an upward-facing arm needs. At 2,700K it sits easily in sitting rooms, dining rooms, bedrooms and hallways, and the IP20 rating keeps it to indoor, dry positions.
It is not dimmable, so run it from a plain on/off switch; a non-dimmable LED on a dimmer circuit will usually flicker or buzz. The energy rating is E, and the pack prints a 15,000 hour lifespan, given there as 15 years. One unit is a single bulb, and the minimum order is 12, sold in multiples of 12, which works out well when you are relamping a whole chandelier. We also list this B15 candle in a dimmable version and in cool white 4000K, along with a B15 golf shape at the same 4.2W and 470lm.
Specification
| Fitting |
B15 small bayonet cap (SBC) |
| Shape |
Candle |
| Technology |
LED |
| Wattage |
4.2W |
| Brightness |
470lm |
| Equivalent |
40W, as printed on the retail pack |
| Colour temperature |
2,700K warm white |
| Beam angle |
240 degrees |
| Dimmable |
No |
| IP rating |
IP20 |
| Energy rating |
E |
| Lifespan as printed |
15,000 hours, printed on the pack as 15 years |
| Sold as |
Single bulb, box of 1 |
| Minimum order |
12, sold in multiples of 12 |
Frequently Asked
How do I tell a B15 cap from a B22?
Measure the metal cap across its widest point. B15 is 15mm, B22 is 22mm, and both have two pins on the side, so the diameter is the quickest way to be sure before ordering.
Can I put this on a dimmer switch?
No. This bulb is non-dimmable, as the pack states, so wire it to a plain on/off switch. On a dimmer circuit a non-dimmable LED will usually flicker, buzz or fail early.
How bright is 470 lumens in a real fitting?
The pack rates it as a 40W replacement, so in a three or five arm chandelier the combined output is plenty for a sitting room or dining room.
What does 2,700K warm white actually look like?
It is a soft, slightly yellow light, close to an old incandescent bulb. It flatters warm paint, wood and brass, and reads as relaxing rather than crisp or clinical.
How many bulbs do I receive, and why the minimum order?
Each unit is one bulb in a box of one. The minimum order is 12 units, sold in multiples of 12, so you receive twelve individually boxed bulbs.