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ST18 LED Filament Bulb - 40 Watt Equivalent Vintage Light Bulb - 12V DC - 350 Lumens

Part Number: ST18-x5DF-12V
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Starting at $9.95 ea. (per Bulb)
Volume price as low as $8.09
Orders Ship Today!  6 Hours and 51 Minutes remaining
  • WARNING: Do not install a 12 Volt LED light bulb into a standard residential 120 VAC socket as this will cause a short and burn out socket and bulb.


This off-grid/RV LED filament bulb is perfect for ornamental lights, decorative light strands, RV interior lighting, boat cabin lighting, or for any decorative 12-volt application that accepts ST18 teardrop bulb types with E26/E27 bases. The bulb's low current draw also makes it ideal for off-grid living and renewable energy applications such as hydro and solar powered lights. Using 6 linear COB (chips-on-board) LEDs, the ST18 bulb emits up to 350 lumens of ultra warm white illumination. The LED light consumes just 5 watts of power; an incandescent bulb with comparable light output would consume 40 watts. This bulb operates within an 8-16V AC/DC range and is designed to last 25 times longer than incandescent bulbs. Price per bulb.

Important Notes - Please read before purchasing:
  1. WARNING: Do not install a 12 Volt LED light bulb into a standard residential 120 VAC socket as this will cause a short and burn out socket and bulb.
Warranties & Certifications
3 Years
Super Bright LEDs, Inc. offers a 3-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equal value may be substituted. Read More
In order for certain products within controlled categories, such as electrical and electronic devices, to be legally sold in the European Economic Area, they must bear a CE label, which stands for Conformité Européenne (European Conformity). Products with this label meet environmental, health, and safety standards put into place by European legislation.
  • Living Room Lighting
  • Off Grid Lighting
  • Bistro Lights
  • Decorative Light Strands
  • Commercial Light Strings
  • Chandelier Bulbs
  • Ornamental Fixtures
  • Vintage LED Wall Sconces
  • Old-Fashioned Lamps
  • Outdoor Wedding Lights
  • Wall Lights
  • LED Reading And Desk Lamps
  • LED Antique And Vintage Lighting


Swipe left to see additional specifications
Part NOLED Wattage
Total Power Consumption
Intensity per LEDMilliwatt
Price Ea.Product WeightLumen Per DollarBallast Compatibility
ST18-UW5DF-12V----$9.95-35.18 lumen/dollar-
ST18-UW5DF-12V-6PK----$53.95-38.92 lumen/dollar-
ST18-x5DF-12V - LED Vintage Light Bulb - ST18 LED Bulb w/ Filament LED - 5W
LED Vintage Light Bulb - ST18 LED Bulb w/ Filament LED - 5W



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Stylish and functional!

Very pleased with this bulb! After searching high and low for a 12 volt Edison Nostalgic type bulb I discovered one here! A 12 volt - medium base bulb in either incandescent or LED just aren't common! (Keeping that in mind, I ordered two!)

The application is to use this bulb on an outdoor fixture mounted on a pilaster. It is part of a 12v landscape lighting system. The bulb is very attractive even when off as it is enclosed in a clear beveled glass enclosure. When lit, it casts a nice warm glow. I was initially concerned with the level of brightness as my ideal bulb was only to be 25W's but with the warm light this bulb casts when lit, the amount of light for a 35W bulb is just fine.

Very happy to find this bulb. As this was my first purchase from Super Bright LED's and couldn't be happy with the order and fulfillment process.

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love these

i bought 2, then 2 more and now one more to replace all the 12 volt lamps in my rv. the color is soft and warm, yet provides very usable light with next to no power consumption. im impressed!

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Outstanding !

When local inspectors raised hell about my vintage wiring and lighting, I re-engineered the system to 12v with minimal trouble. These bulbs have been operating nightly for over 3 years, and if I had not broken one while being careless with a ladder, I would not have needed to order more ! They look good in my 1910 vintage streetlights and give a soft, warm glow, period correct for the antique fixtures.

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Using these for a 12v AC landscape lighting system and they work great. Sometimes bulbs are listed as AC compatible but they flicker. These don't flicker at all and the color and brightness are just right (although you'd think they're blinding based on my phone camera).

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These ARE dimmable! Beautiful,accurate warm-glow!

2200K is the a tough color temperature to find in LED bulbs, but it's the color that you get when you dim an incandescent bulb, and consequently it's the color temperature you would most attribute to warm and inviting environments. The more common warm white temperature is 2700K and even more common is 3000K.

I was impressed that I could find a standard filament-style LED bulb in 12v, much less 2200K! They are a little pricey, but so worthwhile when energy savings is a priority- when you are operating off the grid. They are perfectly bright, but with a wonderful warm glow, that isn't harsh in the least bit. The best surprise is that, in spite of their rating as NOT dimmable, they in fact ARE. You need to use a 12v dimmer, but they are inexpensive and provide a flawless dimming experience, better than any 110v dimmer. I hope the availability of these bulbs stick around.

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