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Delta Extension Body (18650)

Name: Delta Extension Body (18650)
Brand: Prometheus Lights

$65.00–$95.00

Flashlights

Availability needs checking

Last observed: 2026-03-28 06:04 UTC. Check the selected seller for current availability.

First listed 6mo ago

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About Delta Extension Body (18650)

Get Shorty

Convert any Alpha to an 18350 powered "shorty"

The same Alpha power in a smaller package...and 1/4 the run-time. Well, you can't have everything right? A lot of people have asked for an Alpha with a "smaller footprint" and this is the solution. The shorty bodies are made in-house just a few at a time.

The body is about 1" shorter than a standard Alpha body, but uses the same head and tailcap as a full-size Alpha.

Shorty bodies are ONLY available as a stand-alone accessory (as shown here) they are not available as complete lights.

These bodies should be compatible with all current Blue-Label (blue/gold 3 digit serial number) and Ready-Made Alphas (black/white 4 digit number). All bodies are interchangeable.

They MAY NOT be compatible with the oldest Alphas (no serial number) because of a small change in the size of the tailcap thread.

You MUST use an 18350 IMR chemistry battery if you are going to run a Shorty body.

Standard Li-Ion batteries (RCR123 or 18350) are dangerous to use because they cannot safely deliver 3.4A of current.
CR123 disposable batteries are NOT compatible.
If you aren't sure what all of this means, you don't want to buy one of these.

The cells we recommend can be purchased via this link, or by clicking the image below.

Availability history: Among 116 drops tracked for Prometheus Lights, 87% have a recorded unavailability event. These observations do not verify completed sales.

Compare configurations and sellers

Choose the same version, finish, size and included parts to compare prices. Prices exclude shipping, tax and conditional discounts.

Configuration

FourSevens$65.00 USD

Delta Extension Body (18650) · Ready Made

New · Availability needs checking

Last observed: 4/28/2026, 10:33:29 AM UTC

Check this option at FourSevens

FourSevens$85.00 USD

Delta Extension Body (18650) · Ti Fuller Raw

New · Availability needs checking

Last observed: 4/28/2026, 10:33:29 AM UTC

Check this option at FourSevens

FourSevens$95.00 USD

Delta Extension Body (18650) · Ti Fuller Stone Wash

New · Availability needs checking

Last observed: 4/28/2026, 10:33:29 AM UTC

Check this option at FourSevens

Specifications

Weight: 43 g
Battery: 18350
Material: Aluminum
Other materials: Titanium
Features: Extension Body, Modular

Specs derived from Delta Extension Body (18650) listing data — verify critical details with the retailer.

Price history

At $65.00, it's priced a little above the median for Prometheus Lights's flashlights ($44.99 median). This compares catalog asking prices; it does not establish value for this model or material.

Lowest tracked: $65.00

Based on 1 recorded price since March 2026.

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Price history

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Frequently asked questions

How much does the Delta Extension Body (18650) cost?

The Delta Extension Body (18650) by Prometheus Lights is currently priced between $65.00 and $95.00; availability needs checking. Drop Beacon tracks live prices so you can find the best deal.

Is the Delta Extension Body (18650) a good price right now?

At $65.00, it's priced a little above the median for Prometheus Lights's flashlights ($44.99 median). This compares catalog asking prices; it does not establish value for this model or material.

Where can I buy the Delta Extension Body (18650)?

The Delta Extension Body (18650) is available from 1 retailer tracked on Drop Beacon. Compare the exact configuration, condition and last availability check before choosing an offer.

What does the recorded availability history for Prometheus Lights show?

Among 116 drops tracked for Prometheus Lights, 87% have a recorded unavailability event. These observations do not verify completed sales.

What is the lowest price the Delta Extension Body (18650) has been?

The lowest price Drop Beacon has tracked for the Delta Extension Body (18650) is $65.00. Full price history shows whether the current price is a genuine deal.

Get Shorty

Convert any Alpha to an 18350 powered "shorty"

The body is about 1" shorter than a standard Alpha body, but uses the same head and tailcap as a full-size Alpha.

Shorty bodies are ONLY available as a stand-alone accessory (as shown here) they are not available as complete lights.

These bodies should be compatible with all current Blue-Label (blue/gold 3 digit serial number) and Ready-Made Alphas (black/white 4 digit number). All bodies are interchangeable.

They MAY NOT be compatible with the oldest Alphas (no serial number) because of a small change in the size of the tailcap thread.

You MUST use an 18350 IMR chemistry battery if you are going to run a Shorty body.

Standard Li-Ion batteries (RCR123 or 18350) are dangerous to use because they cannot safely deliver 3.4A of current.
CR123 disposable batteries are NOT compatible.
If you aren't sure what all of this means, you don't want to buy one of these.

The cells we recommend can be purchased via this link, or by clicking the image below.