We help you create smiles in the moment and memories that last a lifetime.

Incandescent Christmas Light Bulbs

Our classic collection of C7 and C9 incandescent Christmas light bulbs brings timeless holiday charm to any display. These traditional bulbs feature the warm, nostalgic glow that has decorated homes for generations. The C7 bulbs, perfect for indoor trees and smaller outdoor displays, provide a softer illumination, while the larger C9 bulbs create bold, bright statements perfect for rooflines and outdoor decorations. Available in a rainbow of vibrant colors, these bulbs are compatible with standard C7 and C9 sockets and come in convenient multi-packs.

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Incandescent C7 & C9 Bulbs: Classic Christmas Lighting

Incandescent C7 and C9 replacement bulbs from The Christmas Light Emporium give you the traditional warm glow of incandescent technology in a screw-in format compatible with standard stringer wire. A straightforward choice for decorators who want the classic look. Browse incandescent Christmas lights for the full incandescent range.

What's In This Collection

C7 incandescent replacement bulbs (E12 candelabra base) and C9 incandescent replacement bulbs (E17 intermediate base) in standard colors. For LED replacement bulbs, see ProCore LED Christmas light bulbs.

How to Choose

C7 bulbs (E12 base) are used primarily for windows, doorways, and wrapping trees. C9 bulbs (E17 base) are the standard for rooflines, gutters, and architectural outlines. Always match the bulb base to your stringer wire socket. Incandescent bulbs burn out individually and should be checked and replaced at the start of each season.

Frequently Asked Questions

What base does a C7 incandescent bulb use?

C7 bulbs use an E12 candelabra base — the same size as a small nightlight or chandelier bulb.

What base does a C9 incandescent bulb use?

C9 bulbs use an E17 intermediate base.

Can I replace incandescent bulbs with LED bulbs on the same stringer?

In most cases yes — LED C7 and C9 replacement bulbs use the same E12 and E17 bases and are compatible with standard stringer wire. Verify the base size and socket type before mixing.

How long do incandescent Christmas bulbs last?

Incandescent bulbs have a significantly shorter lifespan than LED. Typical incandescent C7/C9 bulbs last 1,000–3,000 hours depending on use. LED equivalents typically last 25,000–50,000 hours.

Make Memories. Create Smiles.

We help you create smiles in the moment and memories that last a lifetime—seriously, that's what gets us up in the morning!

  • Share the Joy

    Share the Joy

    We absolutely believe that if we create as many smiles, spread as much joy, develop as many memories, and share the gift of hope with as many people as possible, our world will be a far better place. It's not just business—it's our mission!

  • Make It Easy

    Make it Easy

    Life is already complicated enough and decorating should be pure fun! We help you make your sometimes overwhelming projects easy and totally enjoyable—because stress and holiday decorating don't mix!

  • Reindeer Proof

    Reindeer Proof

    Every single product we sell is quality checked by our hardworking elves and backed by our famous Reindeer Proof™ Warranty that covers you no matter what happens!