C9 Blue Opaque Glass Bulbs E17 Bases (25 Pack)

B-C9OBLU

Regular price $10.50 Sale price$8.20 Everyday Value
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Shipping calculated at checkout.

  • Price per bulb: $0.328
  • In stock, ready to ship
  • Backordered, shipping soon

These opaque blue C9 Christmas bulbs create a special welcome to houseguests and neighbors when you embellish your holiday decorations with them. A longtime favorite of Christmas light lovers, C9 Christmas lights bring a nostalgic appearance to your Christmas tree and indoor garlands. We love the combination of blue and white C9 bulbs for a frosty, winter appeal.

Details

  • Incandescent, Glass
  • Sold in Boxes of 25 Bulbs
  • Standard C9 E17 base
  • Heats up under operation
  • Not compatible with all artificial trees
  • Cords sold separately

Shipping

Seasonal Shipping Notice

Christmas Light Source observes a brief annual shipping pause at the end of the year.

Orders placed during this time are still accepted and processed, but shipping will resume on January 5, 2025.

Our customer service team continues to monitor email during this period and will respond as quickly as possible. If you have questions about an order, product compatibility, or planning ahead for upcoming projects, we’re glad to help.

Thank you for your patience and for being part of our community.

See our Shipping Information Page for more information.

Warranty

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

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 by replying to your order confirmation email. Please include photos of the issue and a photo of your product item number, if applicable. We will work with you to troubleshoot the problem, and if the issue is not easily and quickly resolved, we will correct the situation.

See our Warranty Policy Page for more information. 

Returns

Like-new, uninstalled products may be returned for a credit to the form of payment used during checkout. Please reach out to us to request return instructions. Reply to your order confirmation email us via our contact page.

Orders must be returned within 30 days of requesting return instructions. After receipt of the return, the amount of the purchase price should be credited within 7 business days.

Return and original shipping charges are not refunded.

See our complete Returns Policy.

Specifications and Dimensions

Glass or LED Glass Bulbs Only Select C9 Cords
Bulb Style Opaque Hot During Use Yes
Light Color Blue Base Type E17
Bulb Shape C9 Voltage 120 V
Base Finish Nickel Current Draw .06 Amps
Dimmable Yes Power Draw 7 Watts
Bulb Width 1 1/8 inch Bulb Height 2 7/8 inch
Bulb Diameter 1 1/8 inch Rated Lifespan Approx. 2000 hours
Application Indoor & Outdoor Warranty 90-Day Limited Warranty (Normal Seasonal Use)
Additional Info 25 bulbs per box Material Glass

Questions and Answers

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  • I’d like to know which color blue the opaque blue bulbs is. The photos show turquoise and blue?

    Thank you so much for reaching out — that’s a great observation, and you’re not imagining it.

    This bulb is an incandescent bulb with a true blue opaque coating, and when it’s turned on, the color you see is influenced by the warm yellow light produced by the filament inside. From a basic color-theory standpoint, yellow light shining through blue glass naturally shifts the appearance toward green, which is why the lit bulb can read more like a robin’s-egg blue rather than a crisp, true blue.

    This is a normal characteristic of incandescent glass bulbs. Unlike LEDs — where the color is generated by the diode itself and stays very precise — incandescent bulbs always combine the glass color with the warm filament light. That blending is part of their traditional, vintage look, but it does mean the “on” color will differ from the “off” color.

    If you’re looking for a truer blue when lit, an LED blue bulb would be the best choice. If you enjoy the classic incandescent glow, then what you’re seeing is exactly how this bulb is designed to behave.

    Please let us know if you’d like help comparing options or choosing the best bulb for your display — we’re happy to help.