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Same awesome, smaller size!
I've been selling "shorty" bodies for Alpha flashlights for years, but this is the first time we've offer them as stand-alone lights. This variant is a standard Alpha with a short body that accepts and 18350 IMR battery.
Battery type is IMR 18350 ONLY. Standard lithium ion batteries (non-IMR chemistry) in any size CANNOT handle the 3.4A current drain. Using these batteries are DANGEROUS. Appropriate batteries can be purchased here.
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Alpha lights are assembled to order and may take up to two weeks to ship, depending on our current workload.
The Alpha wasn't always a classic, but my three original finishes are back from a very long hiatus. basically I wasn't able to keep up with the workload, but the current Prometheus team numbers six souls and we can get a lot more done. An 18350 battery is 1/2 the size but only 1/3 of the overall capacity. This makes the 18650 great for a work/utility/duty light when you need to use it regularly. The smaller 18350 is more suitable for EDC (Every Day Carry) and casual use.
I've been working on this driver for over two years. It's simple, powerful, and full of features even the most demanding flashlight enthusiasts will appreciate. A maximum current of 3.4 Amps delivers class-leading power and an advanced software platform lets you make Icarus a reflection of your unique preferences by programming it any way you like...
This driver is 100% designed, programmed, and manufactured (in the USA) just for me. Until now, I've been limited by "what is available," but Icarus is the realization of a long standing goal. No expense is spared, no shortcuts taken, no compromise accepted. I'm proud to put the Prometheus stamp on this driver as the crowning jewel of the Alpha platform.
LED Options:
We are currently offering the following LED options:
- Nichia 219C (4000K) ~600+ Lumens / 92+ CRI
- Cree MCE (4500K) ~700+ Lumens / 82+CRI
- Cree MCE (6500K) ~800+ Lumens / 75+CRI
- Cree XML2 (4500K) ~800+ Lumens / 80+ CRI
- Cree XML2 (6500K) ~900+ Lumens / 75+ CRI
Battery | Single 18650 lithium-ion (4.2V) | |
Cree MCE led (cool wht) | (Flux bin "M")(Tint Bin "WC" 6500K) | |
Cree MCE led (neutral wht) | (Flux bin "K")(Tint Bin "4A" 4500K) | |
Cree XML2 led (cool wht) | (Flux bin "U2")(Tint Bin "1C" 6500K) | |
Cree XML2 led (neutral wht) | (Flux bin "T5")(Tint Bin "4C" 4500K) | |
Nichia 219C High-CRI led | (NVSL219C R9050)(4000K) | |
MCE output (cool wht) | ~800+ lumens OTF (minimum) | |
MCE output (neutral wht) | ~700+ lumens OTF (minimum) | |
XML output (cool wht) | ~900+ lumens OTF (minimum) | |
XML output (neutral wht) | ~800+ lumens OTF (minimum) | |
Nichia 219 output | ~600+ lumens OTF (minimum) | |
3.4A regulated driver | "Icarus" Proprietary Driver (4.2V input) Programmable | |
driver UI | Fully User Programmable | |
run times (est.) | Burst = 20min, High =30min, Medium =173min, Low = 1000min ![]() |
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reflector | Ledil Boom MC-S (Spot)(Angle = FWHM 20°) ![]() |
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window (lens) | 98% UCL glass (2 side AR coated) ![]() |
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thermal interface | Bergquist Bond-Ply 100 ![]() |
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clicky switch | McClicky "forward" click switch (it's famous!) | |
switch boot | Molded silicone | |
wire | Mil-spec silver plated 24 AWG, teflon coated | |
solder | Silver Solder (RoHS compliant) ![]() |
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body material | 6061-T6 aluminum | |
Coating | Electroless Nickel (Hardness: 48-50 Rc) ![]() |
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driver mount (Blue-Label) | C101 Oxy-free electronic copper (H02 99% pure) | |
driver mount (Ready-Made) | 6061-T6 aluminum (EN plated) | |
o-rings (Blue-Label) | Mil-Spec Fluorosilicone (70 Durometer Shore A) ![]() |
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o-rings (Ready-Made) | Buna-N "Nitrile" (50 Durometer Shore A) | |
threads | Body-to-head (1x28) body-to-tail (7/8x28) | |
lubricant | StClaire Nano-Oil (10 Wt.) ![]() |
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dimensions | 1.2" x 5.75" (body dia. is 1") | |
weight | 4.79oz (136.1g) No Battery | |
ANSI thead tolerance (Blue-Label) | Class III A/B | |
ANSI thead tolerance (Ready-Made) | Class II A/B | |
depth rating | 300 feet for 5 hours (tested!) ![]() |

The Alpha Series is very small and very powerful.