The EX4 is extremely light, compact and explosion-proof. The intrinsically safe flashlight is specially designed for Ex-Zone 0/20 work areas where explosive atmospheres in the form of flammable gases, vapours or dust clouds (e.g. in gas tanks or grain silos) predominate. With a weight of only 65 grams including battery, you can easily forget that you have a full-fledged Ledlenser flashlight in your pocket. In addition, this lamp works on 2x AA batteries and is completely dust and water resistant (IP68).