Nitecores first ever intrinsically safe explosion proof headlamp. Designed for use in harsh environments, the EH1S comes with a single high capacity rechargeable battery installed and is rated at an IPX68 for dust and waterproofing. With a powerful CREE XP-G2 S3 and four red LEDs, this headlamp is versatile and durable. Use it for mining, underground and off-shore petroleum exploitation, petrochemical and chemical industries, and other high risk industries. Note: While typical Nitecore batteries offer up to 500 recharging cycles, the EH1S battery is not replaceable in order to meet safety standards. Therefore, the internal battery has been specially designed to offer up to 1200 charging cycles.