When shopping for LED bulbs, one of the most common points of confusion is the difference between E12 and E14 bases. These two small screw bases are frequently used in decorative lighting, and while they look almost identical, that 2mm difference in size makes them non-interchangeable.

In this post, we’ll break down the differences between E12 and E14 bulbs, where each is typically used, and how to make the right choice for your fixture.

What Are E12 and E14 LED Bulbs?

E12 Bulbs – Also known as candelabra base bulbs, these have a screw base diameter of 12mm. They’re commonly used in:

• Chandeliers

• Wall sconces

• Pendant lights

• Smaller table lamps

E14 Bulbs – Also called small Edison screw bulbs, these have a slightly wider base at 14mm. They’re often found in:

• Mid-size table lamps

• Floor lamps

• Ceiling fixtures

• European-style lighting designs

While they may appear similar, E12 and E14 bulbs are not interchangeable. Even a 2mm size mismatch can prevent the bulb from screwing in properly or working safely.

Visual Comparison: E12 vs E14

A helpful photo below shows the visual difference between E12 and E14 bases.

Key Differences Between E12 and E14 Bulbs

Should You Use an Adapter?

While adapters exist to convert E12 to E14 or vice versa, we recommend using them only as a temporary solution. Adapters can change the height of the bulb and may affect how it sits in enclosed or tight fixtures. When possible, choose a bulb with the correct base size for the best fit and safety.

Final Tips for Choosing the Right Bulb

When selecting an LED bulb, always:

• Check the base size of your fixture

• Confirm voltage compatibility

• Choose the appropriate brightness and color temperature

• Make sure the bulb shape fits your design style

At Malane Lighting, we carry both E12 and E14 bulbs, perfectly matched to our designer fixtures. If you're unsure which bulb you need, our support team is happy to guide you.