C7 twinkle bulbs Multi Color
C7 twinkle bulbs Multi Color
C7 twinkle bulbs Multi Color

C7 twinkle bulbs Multi Color

Sold by 25, Price per Bulb

Price: $0.46
Unit price  per 
Shipping calculated at checkout.

These Multi-Color C7 twinkle bulbs are beautiful at Christmas and work fantastically on their own or mixed with steady-on bulbs.

We've seen our customers are using these Multi Color C7 twinkle lights to light the following types of events and projects: Christmas Trees, Holiday Get-Togethers, Birthday Parties. Install these bulbs in your existing C7 cords with E12 bases or choose new cords from our wide variety of lengths, colors and spacing.


  • Blue, Green, Orange, Red, Pink
  • Incandescent, Glass
  • Sold in boxes of 25, Price is per bulb
  • Standard C7 E12 base
  • Heats up under operation
  • Not compatible with all artificial trees
  • Cords sold separately


Incandescent or LED Incandescent Purchase Separately C7/E12 Cord
Bulb Style Transparent, Twinkle Warm-Up During Operation Yes
Color of Bulbs Multicolor (B,G,O,R,P) Base Size E12 (Candelabra)
Shape of Bulbs C7 Voltage 130 V
Base Finish Nickel Current Draw .06 Amps
Dimmable Yes Power Draw 7 Watts
Bulb Width 7/8 inch Bulb Height 2 1/8 inch
Bulb Diameter 7/8 inch Potential Lifespan Estimate 1,000 hours
Application Indoor/Outdoor Warranty 90 Days of Normal Seasonal Use
Additional Info 25 bulbs per box, price per bulb Material Glass
Additional Info Double Dipped (2 layers of transparent paint) Additional Info Suitable replacement bulb for standard Christmas Light Cords
For more information

What is the difference between SPT-1 and SPT-2? Make sure your cord and plugs match!

Can I cut Christmas lights to length? Yes, you CAN shorten C7 and C9 18 AWG Christmas light cords with sockets and screw in bulbs.

How do I light my 20-foot tree? We'll share a materials list and the process for lighting your big, outdoor tree.

What is the difference between C7 and C9 bulbs? C7 bulbs are about 1.5" tall C9 bulbs are roughly 2.25" tall..

How many lights do I need for an outdoor tree? 350-525 C9 bulbs is a nice starting range. Use our How Many Lights Should I Put on My Tree Calculator for a tighter estimate.

What are the Christmas light sizes, bases, and lens shapes? Let us give you a quick bulb tutorial.

Warranty and returns

Please test your lights when you receive them! Everyone is happier when we resolve issues quickly.

Warranty. Our warranty for all our products is 90 days of normal, seasonal use. If a product is defective or fails during the 90 days following receipt of your order, please contact us right away. We will work with you to troubleshoot the problem, and if the issue is not easily and quickly resolved, we will ll correct the situation.

Returns. You can return eligible products when you contact us within 14 days of receiving an order to let us know you are returning items from your order. We will provide you with addressing instructions. Customer is responsible for return shipping.

Eligible products have not been installed and are in their original packaging in like-new condition. If returned products are received within 45 days of receiving your order, there is no restocking fee. After 45 days, a 15% restocking fee will be deducted from your merchandise credit. No returns accepted after 60 days.

Upon receipt of your return, your account will be credited for the cost of the products. Shipping charges are not credited.

See our complete Shipping and Warranty page for return instructions and additional information.


Customer Reviews

Based on 12 reviews
Glenda W.s.

Great service

Nice lights, fast delivery

25 incandescent C7 bulbs., 5 different colors. I like the effect of each bulb flashing independently and at different rates. I thought the price was reasonable and they were delivered in 2 days - very fast. Thanks, guys! I look forward to working with you again.

Joseph M.
I love them.

I received my order and they work perfectly. They are even the true colors of my other twinkle lights. I had previously ordered from a competitor and the lights didn't twinkle nor did they have the true colors that I am used to. I have your site bookmarked for ordering future items.

Love these bulbs!

This is my third purchase of the C7 twinkle light bulbs from Christmas light source. Shipping is very prompt and the price is the best I have found for these difficult to find light bulbs. Package arrived well packed and the bulbs last! I am a forever customer! Thank you!

Long lost has been found

My parents have a ceramic hunted house that they made 20+ years ago, it had two of these flashing bulbs, one burned out years ago, couldn't find a replacement and had to replace it with a solid bulb, the second flashing bulb burnt out this year prompting renewed search. Ordered these bulbs, the haunted house has never looked better.

Old style Christmas

I’m so glad I found this company that sells the c-7 blinker bulbs.Th is is my second order ! Never a problem and quick delivery! Love ��

Old style Christmas

I'm so glad I found this company that sells the c-7 blinker bulbs.Th is is my second order ! Never a problem and quick delivery! Love <3

Carol S.

Thanks for still carrying these twinkle bulbs. They are getting harder to find now with the LED lights. We love our old fashioned lighted tree!


A bit disappointed because a bunch of the bulbs either fail to flash or are flashing weakly. Temperature isn't an issue because I'm using these bulbs indoors where the ambient temperature is 71 deg. *Customer service will be reaching out to you to discuss what you might be seeing.*


I have looked for years at christmastime for these twinkle bulbs and could never find them. Thanks to Christmas Light Source I now have them. Thank you Thank you

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Shipping Policy

We are currently shipping Monday - Friday with most orders placed before 1:00 CST shipping the same or next business day.

Orders cannot be canceled or changed once they are placed. 

Delivery Timeframe Notices Regarding Air Orders

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.