Description Ergonomic and comfortable with the AIRFIT® headband (Petzl patent): Innovative, streamlined design, with semi-rigid headband, ultra-thin lamp body and battery pack in the rear to distribute headlamp weight over the entire head, making it balanced and comfortable enough to be almost imperceptible. Water-repellent headband resists sweat and rain and is thin, considerably reducing the area of contact and improving air circulation during dynamic activities. Quick and easy rear adjustment Optimal visual comfort: Lightweight and powerful: 500 lumens and only 79 g Multiple LEDs provide homogeneous light distribution Two beam types (wide or mixed) and many white brightness levels to meet different needs: proximity lighting, movement and distance vision Three lighting levels, quickly and easily accessible with a single button Rechargeable: CORE battery charges via micro USB port Reduced environmental impact: the entire lifespan of a CORE rechargeable battery is equivalent to that of 900 standard batteries. HYBRID CONCEPT design: IKO® CORE comes with the CORE rechargeable battery and also works with three standard batteries, the lamp detects the energy source and adjusts lighting performance (IKO® CORE with CORE rechargeable battery: 500 lumens; IKO® CORE with standard batteries: 350 lumens) Versatile and easy to use: Can be mounted in various ways depending on use: worn on the head or around the neck, placed on a table, attached to a tent pole or tree Storage pouch allows it to be transformed into a lantern Reflective components in rear to remain visible at night Battery charge indicator shows remaining battery life each time lamp is turned on or off Two LOCK functions to avoid accidentally turning it on Can fold flat in its minimalist pouch to reduce bulk Compatible with all Petzl helmets Specifications Brightness: 500 lumens (ANSI FL 1 STANDARD) Weight: 79 g Beam pattern: Wide or mixed Energy: 1250 mAh CORE rechargeable battery (included) Charging time: 3.5 h Battery compatibility: Alkaline, lithium, or Ni-MH rechargeable Watertightness: IPX4 (weather-resistant) Certification(s): CE, UKCA PETZ E104BA00 Headlamp IKO CORE