LED Christmas lights

C9 Led Bulbs

This entire line of C9 bulbs have E17 threaded bases which makes them compatible with traditional C9 cords so if your Christmas stash includes string wire that’s in good repair, you can purchase these retrofit bulbs to migrate your display from incandescent to energy-efficient LED.

These bulbs have an E17 base. If you are unsure what size base bulbs you need, these are larger than a night light base which is E12. So if you are trying to match or replace bulbs, check to see if your sockets are larger than a nightlight. If your current bulb fits a nightlight then check out our C7 (E12) line of LED bulbs.

Head over to our Get This Look page which features several projects using C9 LED bulbs for inspiration and tips.

Our styles of C9 LED bulbs:

  • Smooth
  • Faceted
  • Opaque
  • Flashing/Twinkling

Note about LED Christmas bulbs and animation:

Our bulbs are specified as Dimmable and Non-dimmable.

This means that you cannot use them with animation unless they are noted as dimmable. quickly turning them on and off repeatedly will damage them. Only our dimmable bulbs can be ramped with a variable resistor or dimmer switch.

In other words, if you are planning to connect to an animation hardware and software package be sure to choose dimmable LED bulbs or stick with traditional incandescent lighting.

How can I upgrade my traditional C9 stringer cords?

These light bulbs are the answer if you want to use a traditional C9 cord but save electricity and take advantage of more durable LED bulbs. If you have wiring perfectly measured to your roof elevations, it's great to know you have an option to replace your incandescent light bulbs with more durable and energy-efficient C9 LED light bulbs.

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Shipping Policy

We are closed for Thanksgiving. Orders placed now will ship early next week. Orders are immediately put into a shipping process and cannot be canceled or changed once they have been placed.

We aim to ship your order as soon as possible, this means we cannot cancel or modify your order once completed. If you have ordered incorrectly, you can return any uninstalled items that have been shipped to you. See our Shipping, Warranty, and Returns page for more information.

Holiday Delivery Notices

Orders placed now may not arrive by Thanksgiving. 

UPS and FEDEX do not guarantee a delivery date. Deliveries can be delayed for a number of reasons including inclement weather and mechanical failures. High shipping traffic can cause delivery delays. 

Wednesday, November 24

2nd Day Orders shipped this day will be scheduled to arrive the following Monday
Next Day Air Orders shipped this day will be scheduled to arrive the following Friday

Thursday, November 25

No packages are delivered on Thanksgiving. Thanksgiving does not count as a day in transit when calculating delivery day estimates.

To Prevent Delays

Please double-check the address. Include a correct phone number to be used only if there is an issue with the order.  We do not ship to PO Boxes. Orders with PO Box addressing will be delayed while customer is contacted and address is corrected.

To prevent delays: Confirm the wire color of all items. Confirm that bulbs and cords match (for example, C7 with C7, C9 with C9, E12 bulb with E12 cord). Confirm SPT rating of cords and plugs match.

Delivery Timeframe Notices Regarding Air Orders (Excluding Holidays)

Orders placed via ground service should arrive in 1-5 business days depending on your zip code. This estimate does not include weekends, Saturdays, or major Holidays.  

2-Day air orders shipped on Thursday do not arrive Saturday but should arrive the following Monday. Next-Day orders shipped on Friday do not arrive Saturday but should arrive the following Monday. No orders are delivered on the weekend and the weekend does not count as days in transit.

Due to these unprecedented times, UPS and FedEx do not guarantee any method of shipping, including Air Service.

To ensure prompt shipping verify that your order is correct. Please do the following checks:

1. Confirm bulb bases and cord sockets match. 
2. Confirm 18 AWG wire SPT rating matches the SPT rating of plugs.
3. For bulk C7/C9 bulbs and cords orders, don't forget gilbert plugs, if required.
4. Double-check the wire color on all strings lights.