The E-series from Fenix convinces due to its extremely shock resistant, stable, long living and waterproof construction. This innovative lamp series also promises high variability, which is partly due to the length of the lamps themselves (they range from 57mm to 207mm total length) Additionally the lamps fulfill the highest requirements in regards to workmanship, performance and reliability and are therefore perfect for use in military- and law enforcement services. The body of the lamps have a Type III hard anodized finish and are waterproof by the terms of the IPX-8 standard.

The E15 is powered by a CR123A battery and the digitally regulated output maintains constant brightness at 3 different brightness levels. The XP-E LED module from Cree reaches a brightness of up to 170 lumens and with a length of 60mm not only fits into every bag or backpack, but also fits onto every keychain.