Buying guide

Light bulb bases explained: E26/E27, E12/E14, G9 and built-in LED

The "Bulb Base" line in a light's specifications tells you which bulb it takes: E26/E27 is the standard screw base, E12/E14 the smaller candelabra base, G9 a small two-pin base, and SMD means built-in LEDs.

By Clearhalo 2 min read
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Short answer

The "Bulb Base" line in a light's specifications tells you which bulb it takes. E26/E27 is the standard household screw base, E12/E14 is the smaller candelabra base, G9 is a small two-pin base, and "SMD" means built-in LEDs with no bulbs to change.

On this page
Base What it is Where you'll see it
E26 / E27 Standard medium screw base (E26 in the US and Canada, E27 in the UK, Europe and Australia) Most pendants, table lamps, industrial and Tiffany-style lights
E12 / E14 Smaller candelabra screw base (E12 in North America, E14 elsewhere) Candle-style chandeliers and many wall lights
G9 Small bulb with two looped pins that push in Compact modern and crystal fixtures
SMD (built-in LED) LEDs fixed inside the light Many flush mounts, ceiling fans and modern designs
01

Why do some lights list E26/E27 together?

E26 and E27 bulbs fit each other's sockets. We list both so the light works with the bulbs sold where you live, and we supply every light with the correct voltage for your country.

02

Are bulbs included?

It depends on the light. Built-in LED lights always come with their LEDs. Most lights with sockets don't include bulbs, so check "Bulb Included" in the specifications before you order.

03

Can I dim my light?

Lights with sockets are dimmable when you use dimmable bulbs and a compatible dimmer switch. Built-in LED lights list their own options, and some have a remote with stepless dimming or switchable warm and white light.

04

Which bulb color should I choose?

Warm white (2700-3000K) feels relaxed in living rooms and bedrooms. Neutral or cool white (4000K and up) suits kitchens, bathrooms and work areas.

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