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Powertac E2 (Gen IV) Keychain Light - Cree XP-G2 R5 LED - 188 Lumens - Black - Uses 1 x AA

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Powertac E2 Keychain LED Light - Gen IV

Keychain-Mounted Light Cannon

Powertac has been refining and developing their E2 model for years, and this 4th generation may have reached utter perfection. It takes a single AA battery, and transforms it into a stunning 188 lumen light beam. One of the smallest lights to use the CREE XP-G2 R5 LED, the E2 Gen IV is designed to travel on your keychain.

Useful for Self-Defense

Designed here in the USA, the E2 Gen IV has two features that make it handy for self-defense in addition to general-purpose lighting. First, there's a strobe mode that can be used to disorient an attacker at close range. The rapid flickering of the LED at full brightness will stun any eyes that have adjusted to the dark. Second, if push comes to shove, the front edge (or "bezel") of the light is designed for striking. Holding the E2 firmly in your hand and hitting with the light-up end will add extra force to your blow. First they'll see the strobe, then they'll see stars.

Rough and Tumble

Powertac has designed flashlights for intense applications like military usage, law enforcement, and search & rescue. They've used that knowledge when crafting and upgrading the E2. Even with its tiny form factor, the E2 Gen IV has the highest possible waterproofness rating of IPX-8. It can be submerged under 2 m of water and still operate for 30 minutes. And the hard anodized, aircraft quality aluminum body can take any knocks you throw at it.


  • Aircraft-grade aluminum body
  • Anti-scratch type III hard anodized
  • Waterproof in accordance with IPX-8 (two meters submersible)
  • Digital circuit-control technology monitors light output for consistent operation
  • Reverse-polarity protection against accidentally reversed batteries
  • Stainless steel pocket clip for easy carry
  • Crenelated strike bezel for self-defense
  • Manufacturer's No Hassle Lifetime Warranty

Included Accessories:

  • Key ring
  • Spare O-ring


  • Output / Runtime: 1x AA battery:
    • High: 1.3 hrs. / 188 lumens
    • Low: 3.9 hours / 55 lumens
    • Strobe: 2.6 hrs. / 188 lumens
  • Cell: 1x AA battery
  • Dimension: 18.2mm (head diameter) × 18.2mm (body diameter) × 87.5mm (length)
  • Weight: 34 grams (without battery)
  • UPC: 815698013085
  • MPN: E2-G4
Runtime (Hours):-1.3-3.9-
Output Modes:Dual Brightness Levels, Strobe
Compatible Batteries:1 x AA
Batteries Included:No
Included Accessories:Key Ring, Spare O-ring(s)
Flashlight Usage:Every Day Carry, Tactical
Switch Location:Tailcap
Product Certifications:IPX-8
Warranty:Battery Junction 30-Day Warranty, Powertac Lifetime Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Anodized Aluminum
Product Weight:1.2oz
Product Dimensions:3.44" (L) x 0.7" (Head Diameter)0.7" (Body Diameter)
Country of Origin:CN
1 Reviews
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By vince t.
Could have been great
May 15, 2017
Light is well made and output was bright. Only 3 stars due to the UI (user interface). Suppose to cycle from High>Med>Strobe when powered on. Well that depended on what level you left it off at. If I shut off in High, the next time it would come on in Med. If shut off in Med., then it would come on in Strobe. There is no mention of any memory in the literature that accompanies it and even so, its operation is not in the normal sense when memory is used. On top of this, if left off for more than say 3 minutes, the light would then function as expected, coming on in High regardless of what level I turned it off on. I purchased both AA and AAA version and returned both due to this reason. Other than the UI issues, I think its a nice light.
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