The new Triad DF adds a new level of convenience to charging a flashlight. It uses a micro USB charge port which most of us have situated around our houses and cars to charge all our other devices such as phones and Bluetooth units. This Premium Triad features an internal charge circuit and lithium-ion power that drives a Cree XPG R5 LED to 500 lumens. All connectors and springs on the Triad USB are gold plated. This is a very bright high quality light. The body of the light is made of hard-coat anodized aluminum in a matte black finish with a foamed vinyl grip. The activation switch rotates to an intermittent lock or constant-on position. This unit is O-ring sealed for water resistance. The Triad DF comes as a kit. It includes an AC/Wall charger, DC/car charger and retractable USB charge cord along with a zippered ballistic carrier to store everything in. To charge the unit simply twist the head of the of the light to reveal the micro USB charge port. Attach the retractable charging cable to the supplied wall charger, car charger or a computer USB port. Even a micro USB cell phone charger can be used to recharge the Triad DF. The battery indicator of the Triad blinks red when charging. It turns to solid green when fully charged. Includes a reversible pocket clip that's easily detached.