E14 (SES) Oven Bulb 40W 300lm Non-Dimmable - Warm White 2800K

This is an appliance bulb made for the inside of an oven. It takes an E14 small screw cap, has a clear golf shaped glass envelope, and draws 40W for 300 lumens of warm white light at 2,800 Kelvin, as printed on the pack. The pack also rates it to 300C, and that rating is the whole point of the bulb: a standard household lamp is not built to sit in a hot cavity, while a filament lamp of this kind has no driver or plastic housing to cook. The glass is clear rather than pearl, so light reaches the corners of the cavity instead of being diffused close to the holder.

Most built-in ovens and cookers hold the lamp behind a small screw-in glass cover at the back or side of the cavity. Before ordering, take the old bulb out and look at the cap: E14 is a 14mm screw thread, clearly smaller than the E27 used on many household bulbs, and some appliances take a push-fit G9 capsule instead. Check the wattage marked at the lamp holder or printed in the appliance manual as well, and never fit more than the maker allows. Warm white light of this sort reads as a soft yellow, close to a traditional bulb, which makes it easy to judge how far a roast or a tray of biscuits has browned.

The specification states non-dimmable, and an oven lamp is switched by the appliance rather than by a wall dimmer in any case. The energy class is G, as you would expect from a filament lamp, though a cooker light burns for minutes at a time rather than hours. The pack prints a life of 1 year or 1,000 hours. One unit is a single bulb, and the minimum order is 10, sold in multiples of 10, so it is worth keeping spares by. It sits alongside our wider range of fridge and pygmy bulbs and candle and golf shapes in small bayonet and screw caps.

Will this fit my oven?

Check the cap before ordering. This is an E14 small screw fitting with a 14mm thread, so it suits appliances whose lamp holder takes that size. Some ovens use a push-fit G9 capsule or a larger E27 screw instead, so compare the old bulb.

How much heat will it take?

The pack states 300C heat resistant. Most domestic ovens top out well below that figure even on a high roasting setting, which is why an appliance lamp is used in the cavity rather than an ordinary household bulb.

Can I dim it?

No. The specification states non-dimmable, and an oven lamp is normally switched by the appliance or by the door catch rather than by a wall dimmer, so dimming is not something you would wire in.

What wattage does it replace?

The manufacturer does not state an equivalence for this bulb, so we do not quote one. Match the 40W rating against the maximum marked at your appliance lamp holder and do not exceed it.

What does the light look like?

It gives 300 lumens at 2,800 Kelvin, a soft yellow warm white close to an old style household bulb. That is enough to see a tray clearly through the oven door glass.

How long should it last?

The pack prints a life of 1 year or 1,000 hours. An oven lamp is only lit while the oven is in use, so those hours accumulate slowly in most kitchens.