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20 Watt - 12 Volt - Xenon Light Bulb - T3 - G4 Base

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20 Watt - 12 Volt - Xenon Light Bulb - T3 - G4 Base

Item #PJC-20W-XE-12-CL
AvailabilityUsually ships the next business day
Quantity  Add to cartAdd to Wishlist

About our 20 Watt - 12 Volt - Xenon Light Bulb - T3 - G4 Base

    This 20-watt, 12-volt xenon low voltage bipin light bulb with a G4 base and clear glass envelope has a perfect color rendering index and a rated life of 10,000 hours.

  • PJC-20W-XE-12-CL: 20 watts, 12 volts
  • Base: G4 bipin base (pins are 4 mm apart)
  • Diameter: G4 lamps (light bulbs) have T3 bulbs with a diameter of 3/8in
  • Length: the maximum overall length (MOL) is 1.25in
  • Glass Finish: clear for G4 light bulbs
  • Color Rendering Index: CRI is 100 for all xenon light bulbs (100 is considered to be the best)
  • Good Lamp Life: 10,000 hours of rated life on average
  • Easy Lamp Handling: unlike a halogen light bulb the glass envelope of a xenon light bulb may be touched with bare hands (while the lamp is cool) without causing the lamp to fail prematurely
  • Large Quantity Discount: If you would like us to quote on a large quantity of 20-Watt 12-Volt G4 Base Xenon Low Voltage Bipin Light Bulbs, please call us at our toll-free number or use the online Quotation Request for Large Quantities form.  We are always happy to provide you with our best large quantity pricing.

    Satisfaction Guarantee

Product Reviews
20 Watt - 12 Volt - Xenon Light Bulb - T3 - G4 Base
4.5 Stars based on 8 Review(s)
Home of "The King"
5 Stars
I would recommend this item to a friend.

20 Watt - 12 Volt Xenon
May 31, 2014
Exactly as described! Works with my under cabinet lighting. Super fast shipping! Will purchase again in the future. Many thanks Pegasus!

Oak Lawn, IL
5 Stars
I would recommend this item to a friend.

Good Company
August 29, 2013
Bought this earlier and had a bad transformer. They sent out a new one right away.

Las Vegas, Nevada
3 Stars

Fair Prices, Promptly Sent
April 29, 2013
I have landscape lighting that requires 20-Watt 12-Volt G4 Bi-pin's. I was in need of a set to replace all 8 bulbs that were burned out. I needed a longer life bulb as the lighting would be running 8-10 hours a day. In addition to long life, I was specifically looking for a bulb in the 6000k spectrum which brought me to Pegasus Lighting. I reviewed the product on the Pegasus Lighting website and decided to purchase 8 bulbs.
This was the first time I had ordered from Pegasus Lighting and their prices and shipping costs were very reasonable. The bulbs arrived quickly (much faster delivery than what their website quoted) which was a surprise. All of the bulbs were intact with no defects. The bulbs were very easy to install with gloves on (gloves used while handling the bulbs to ensure the integrity of the bulbs were not compromised).
When I installed the new xenon bulbs and turned the power on, I was shocked to find that the Pegasus Lighting xenon bulbs produced a very yellow light. As this was not what I was looking for regarding color emitted from the xenon bulbs, I blame myself for not doing more research on these specific bulbs offered from Pegasus Lighting before ordering.

5 Stars
I would recommend this item to a friend.

Great Service, Promptly Sent
December 29, 2012
I used these to replace 20w halogen bulbs that were included with the original fixtures. These have a rating of 10,000 hours. The halogen's lasted less than 4 months at about 5 hours a night, which is only around 700 hours. I expect these will far exceed that number. The lighting and color are non-discernable between the two types so that should not be a concern.
Packaged as advertised and prompt delivery.

Melbourne, Florida
5 Stars
I would recommend this item to a friend.

Good Product
December 5, 2011
Product as described, fast delivery. Only have them installed a few weeks, to soon to tell about longevity, so far so good.
Works as described.

St.Paul, MN
4 Stars
I would recommend this item to a friend.

Easy order bulb
April 5, 2011
your web page is easy to find things and order from
easy plug in to replace

Olney, Maryland
4 Stars
I would recommend this item to a friend.

Good Bulbs So Far
March 26, 2011
So far, so good. Much better than the previous generation bulbs, which were very finicky. I thought my puck wiring was faulty, but it really was the bulbs. They were crap. The only con is the light is more "yellow" than previous bulbs. I guess I got used to the bright white.
Seem "stable".
More "yellow" light than I would like.

Doug D.
Lancaster, PA
5 Stars
I would recommend this item to a friend.

Excellent Service
March 17, 2011
Received in a timely manner at a great price

Questions & Answers
By Barbara Liotta from Long Island New York on October 24, 2013
I have a fixture with a Halogen Bulb operates on 12 volts DC maximum 5 watts. It is not bright enough.
What bulb do you suggest? Can I use a Xenon bulb?
By Jacob from Pegasus Lighting on October 24, 2013


You can use a xenon light bulb BUT it cannot exceed the 5 watts your fixture is suited for. It can be dangerous to put a higher wattage light bulb in a fixture that is not designed for it. Plus, halogen and xenon light bulbs tend to be similar in brightness at the same wattage.

A 5 watt incandescent light fixture is not going to be very bright. Your best bet might be to use a fixture that can handle higher wattage light bulbs.

By Bev from Cincinnati on July 27, 2013
In need of a replacement lamp with G-4 base, 12v and 20W max for a exhaust hood. What is the difference between low voltage and inline electrical? Aware that some under cabinet lighting is low voltage but believe the hood is not. Are these low voltage and inline lamps interchangeable?
By Chris from Pegasus Lighting on July 27, 2013


Low voltage and line voltage lamps are not interchangeable. To learn more about low voltage lighting we have a helpful article on our site called "Low Voltage Lighting: 15 Things to Know" at

In your question you stated that you are in need of a 12v, 20w lamp for you hood. If that is accurate then your hood is low voltage. I recommend that you double-check your hood to determine if it low or line voltage. Good luck!

By Charles from Mountain Top, PA on December 26, 2012
Can I use this bulb in a Miele hood. DA-220-3. The hood uses a Hera fixture model KH-12 and calls for a 20-watt 12v bulb.
By Chris from Pegasus Lighting on December 27, 2012


I don't know for sure. I am not familiar with your hood. Does your hood specifications call for a G4 base light bulb in addition to a 20-watt 12-volt? The base is very important.
By Myron from San Francisco, CA on December 30, 2012

I have a Kobe Hood that uses three 20-watt 12v halogen bulbs. The halogen bulbs only last a few weeks. The last set I bought from Home Depot for $6.99 a piece lasted for only two weeks. I read that these xenon bulbs last ten times longer. I'm on my fourth week with no problem. The bulb is slightly longer by a few millimeters, but it fit just fine.

By Ron Feiock from Rochester, NY on April 25, 2013
I need replacement for Westek under cabinet lights. Contact pins must be 1.0 mm diameter.
Can you confirm what the pin diameter is for this item?
By Jacob from Pegasus Lighting on April 26, 2013


If your fixtures require a 20W T3 xenon light bulb with a G4 base, than this item will fit. The light bulb complies with ANSI standards for this particular shape.

The pin diameter is not a published dimension and since it is so small I cannot tell you if it's exactly 1mm.

By Robin Sloan from Bethesda, MD on March 18, 2015
I'm replacing burned out bulbs in my landscape lighting. If I push these in the sockets, they don't work. As I try to install them, the light flickers but I can't get a good firm connection. Is there a trick?
By Jacob from Pegasus Lighting on March 18, 2015

Robin, no, there's not a trick. They just need to be firmly installed in the sockets.

The issue may be that these bulbs are not exact replacements for your landscape lights. The diameter of the pins may be different from what your light fixture requires. That would explain why a firm connection is not being established.
By Tom S from State College, PA on March 18, 2015

I have no specific experience with using these bulbs in outdoor fixtures, but it sounds like corroded contacts in the sockets.
If that's true, it's too bad, because I don't think you can ever properly clean the contacts. Some electrical supply stores sell a liquid - possibly a spray - contact cleaner, which might work for awhile, but I doubt if it would be long lasting.
By Jim from Albany, NY on March 18, 2015

Try adding a dab of dialectic grease on the prongs of the bulb.

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