The E20 is the ultimate EDC Flashlight. Packing performance, functionality, reliability, and lifetime warranty like Powertac's other higher end models. Use the magnetic tail-cap to stick the E20 to any ferrous metal to illuminate your field of view. Waterproof and impact resistant , the E20 is perfect not just for every day use but a great option for the person with an outdoor lifestyle or tradesman. After one use, you will see there was nothing sacrificed. At 1180 lumens, it is one of the brightest lights on the market.