Will C9 LED bulbs work in my old Christmas light cords?

by | Nov 28, 2018

From Paul in Florida:
 
A few years ago, we had bought regular C9 bulbs and cords and we are thinking of switching over to C9 LED bulbs. Would we need to purchase different cords or could we use the ones we bought previously.
 

Short Answer:  Yes

Long Answer: Yes, and here’s more discussion.

If your cords are in good shape and are a traditional E17 (intermediate) base, then our C9 LED retrofit bulbs should work just fine.

That being said, we have seen a few folks with non-standard light strings that had something wonky with the upper edge of their sockets that interfered with properly seating their LED bulbs but that’s rare. Most of the time, this should be a great fit. The engineer in me can’t say “always” without flinching!

Please note: Even though LED bulbs don’t pull much current (they don’t use much electricity) your Christmas light cord has a maximum length rating of it’s own. A traditional 18 AWG light string with sockets and a 10-amp fuse can be run no more than 250 feet in a single series circuit. 

Keep that in mind as you plan your installation. If you have any specific electrical questions, be sure to ask a Master Electrician for his advice during installation.  

Hope that helps!!

Also, keep in mind that traditional C7 cords with E12 (candelabra size) bases are also great partnered with traditional 18 AWG Christmas light cord as well. The same maximum wire length holds for these light strings as well.

Shopping for retrofit LED bulbs? Find C9 and C7 LED Christmas bulbs online.

Planning to make the change?  Share your comments and photos below!

Post on Instagram and tag us with @christmaslightsource and check the Christmas Light Source Instagram feed for our latest giveaways!  @christmaslightsource

Share with our Facebook page!

Recent Posts

Why are half of my Christmas lights out?

Why are half of my Christmas lights out?

We hear this question from folks who are puzzled that their lights worked fine last season but are half out when they pull them out of storage. Or their lights suddenly half go out during installation.  What gives? Incandescent Christmas tree lights (aka mini...

read more
Measuring to hang Christmas lights – use your family!

Measuring to hang Christmas lights – use your family!

Any tips on measuring for how many feet of lights I'll need? After choosing the color and style of Christmas lights to install along your roofline, before purchasing, the next best step is measuing how many feet of light will be needed for the project. We'd like...

read more
What does the IP65 rating stand for?

What does the IP65 rating stand for?

The Answer: Whether or not you've heard of the actual rating, IP ratings are becoming more attractive to consumers since they are applied to cell phones. Everyone wants to know what will happen to their phones if they were accidentally dropped in water. Either them or...

read more

1 Comment

  1. Judy F Phillips

    I love my lights.

    Reply

Submit a Comment

Your email address will not be published. Required fields are marked *

Related Blog Posts

What does the IP65 rating stand for?

What does the IP65 rating stand for?

The Answer: Whether or not you've heard of the actual rating, IP ratings are becoming more attractive to consumers since they are applied to cell phones. Everyone wants to know what will happen to their phones if they were accidentally dropped in water. Either them or...

read more
Get This Look: A Symphony in Red, White, and Orange

Get This Look: A Symphony in Red, White, and Orange

We have been working with Marc for over 10 years. We love hearing from him yearly and enjoy seeing his emails with attachments. Marc started decorating with LED string lights and has expanded his display over the years. Relationships like this are a large part of what...

read more
Comparing the Colors in Bubblegum Light Strings

Comparing the Colors in Bubblegum Light Strings

We love these "bubble gum" light strings. Also known as G12 LED (infinitely less descriptive), we love these lights because their lenses are as beautiful lit as they are unlit. These are three of our favorite colors. Classic green and blue flanking teal, the newcomer...

read more
Q/A: What do I use to line my roof?

Q/A: What do I use to line my roof?

After lighting a Christmas tree, lining a roofline is one of the first projects folks start with when decorating outdoors for Christmas. There are 4 basic components required to outline a roofline. Christmas light cord Bulbs Clips Gilbert Plugs 1. Christmas Light Cord...

read more