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Ernie Ball

Ernie Ball Earthwood Extra Light Phosphor Bronze Acoustic Guitar Strings, 10-50 Gauge (P02150)

  • Based on 33,313 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jul 4
Order within 20 hours and 38 minutes
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Style: Extra Light (10-50)


Size: Single Pack


Features

  • Warm, rich tone with excellent projection and clarity
  • Extra Light gauge is ideal for players who want less string tension for easier play across the fretboard
  • Phosphor bronze wound on a hex-shaped, high-carbon steel core wire
  • Element Shield Packaging prolongs string life and keeps strings as fresh as the day they were made
  • Made in California, USA with the freshest and finest materials

Description

Ernie Ball Earthwood Phosphor Bronze acoustic guitar strings are made from 92% copper, 7.7% tin, 0.5% phosphorus wire wrapped around brass-plated hex-shaped steel core wire. Phosphor Bronze produces a rich tone with excellent clarity. Gauges .010, .014, .020w, .028, .040, .050.

Brand: Ernie Ball


String Gauge: .01


Color: Extra Light (10-50)


Instrument: Acoustic Guitar


String Material Type: Phosphor Bronze


Brand Name: Ernie Ball


Instrument: Acoustic Guitar


Global Trade Identification Number: 03


UPC: 749699121503


Manufacturer Part Number: P02150


Warranty Description: None.


Unit Count: 1.0 Count


Item Type Name: Acoustic Guitar Strings


Model Name: Extra Light (10-50)


Model Number: P02150


Item Weight: 0.03 Kilograms


Manufacturer: Ernie Ball Music Man


String Material Type: Phosphor Bronze


Coating Description: coated


Body Material Type: Phosphor Bronze


Material Type: Phosphor Bronze


String Gauge: .01


Color: Extra Light (10-50)


Finish Type: Uncoated


Recommended Uses For Product: Acoustic Guitar


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Earthwood Phosphor‑Bronze Strings – A Versatile Brand I Trust on Both Guitar & Bass
Style: Light (11-52) Size: 3-Pack
I’ve been a long‑time fan of Earthwood strings, and the 3‑pack Light Phosphor‑Bronze (11‑52) does everything it promises on my acoustic guitar—bright, articulate tone, easy‑play feel, and solid staying power. What’s even better is that I use the same Earthwood brand for my bass (just a different gauge suited to low‑E tension), and the consistency is a huge win. The bass sets stay warm, punchy, and stay in tune through long gigs, while the guitar set delivers that classic, sweet sparkle I love for finger‑picking and strumming alike. Why I stick with Earthwood: Uniform quality across both instruments, so I never have to hunt for a new brand when I switch between guitar and bass. Reliable durability—the strings last longer than most budget sets, reducing frequent changes. Great tone‑to‑price ratio—you get a professional‑grade sound without breaking the bank. If you’re looking for strings that perform reliably on a guitar and trust the same brand for bass, Earthwood’s Light Phosphor‑Bronze line is a solid, versatile choice. ... show more
Reviewed in the United States on February 2, 2026 by Thomas Allen
    • Top Notch Strings
Style: Medium Light (12-54) Size: Single Pack
Ernie Ball strings are consistent quality and great sounding, good lifetime, and reasonably affordable. I have their “Regular Slinkies” on an electric guitar that are superb.
Reviewed in the United States on April 8, 2026 by PJinSC
    • Solid strings with a balanced sound
Style: Medium Light (12-54) Size: Single Pack
Review Image by Todd R
Review Image by Todd R
Excellent tone and feel These strings sound great right out of the package and feel comfortable under the fingers. The medium-light gauge is a good balance of warmth and playability, and they tuned up quickly without much stretching. I’ve been playing acoustic guitar for years and these delivered exactly what I expected—clear tone, consistent quality, and solid feel across all strings. I’d happily buy these again. ... show more
Reviewed in the United States on January 2, 2026 by Todd R
    • Not for me, but a quality product
Style: Medium Light (12-54) Size: Single Pack
I really wanted to fall in love with these strings, and I’m sure if I was more advanced and knowledgeable, I’d find the right fit for them and would enjoy them. But as a beginner to beginner-intermediate player, I just couldn’t get behind the tone of these strings. For reference, I had D’addarío Phosphor Bronze EJ16 light strings on before switching to these. I really liked the warmth of the tone and they really brought out a full range for my Washburn. Right after I threw these on, I just wasn’t feeling it, mainly in the bottom end (low E, A, and D strings especially). The lows are just really tinny and blend together too much. I feel like I lost some fullness to the sound. Granted, I’m just a couch player and don’t hook up to an amp or anything and I’m on the newer side of playing guitar. I will say these are great QUALITY strings, they tuned right up and settled in pretty quickly. I have no doubt this is a quality product for the price especially. I just don’t think these are my cup of tea. If you hook up to an amp regularly to play, I’m sure you can adjust to really make these sound killer, but for my use case, I really wasn’t into them and they just don’t seem to be a great fit for my guitar and/or play style. To each their own though, if you know what you’re looking for and these are it, you’re not getting a trash product - they’re packaged well and are great quality from what I can tell. ... show more
Reviewed in the United States on February 6, 2026 by Chance L.
    • Bright, crisp resonance is the perfect upgrade for my Fender
Style: Medium Light (12-54) Size: Single Pack
Review Image by Hugo L.
Review Image by Hugo L.
I’ve been testing different strings for my Fender FA-135CE, and the Ernie Ball Earthwood Phosphor Bronze (12-54) are the clear winners: Right out of the pack, these strings brought a "shimmer" to my guitar that the stock strings lacked. They are noticeably bright without being "tinny," which balances well with the laminate spruce top of the my guitar. The best part. After an initial stretch, they hold their pitch incredibly well. I can play for an hour or leave the guitar in its stand for two days, and it’s still perfectly in tune when I pick it up. The Medium Light gauge is the "sweet spot" for this guitar. It offers enough tension for a full, loud projection but is still flexible enough for comfortable fingerstyle playing and bluesy bends. These strings provide enough tension to keep the neck stable without needing a truss rod adjustment in most cases. If you want your acoustic to sound "new" again and stop fighting with your tuning pegs every 10 minutes, these are a reliable, affordable choice. ... show more
Reviewed in the United States on January 23, 2026 by Hugo L.
    • Guitar strings.
Style: Medium Light (12-54) Size: Single Pack
Great set of acoustic guitar strings. Sounds great and holds there tune well
Reviewed in the United States on April 13, 2026 by david malinowski
    • Solid Strings
Style: Light (11-52) Size: Single Pack
Honestly, for roughly 2-3 weeks these sound brilliant, incredible. I play a lot of shows. Your average player would probably get a solid couple of months. Well done Ernie!
Reviewed in the United States on March 27, 2026 by J
    • Good quality
Style: Medium Light (12-54) Size: Single Pack
Review Image by R. Holding
Very smooth, sounding strings brightness is very good, very stable. Once you get them put on, fit perfect, good tuning, and very good string tension once they’re put on the guitar.
Reviewed in the United States on April 16, 2026 by R. Holding

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