The Princeton Tec EOS II is an intrinsically safe headlamp ideal for every mission where visibility and being able to spot at a distance are a must. Durable construction pairs with an IPX7 waterproof rating for all-weather performance, plus an included rubber strap for slip-free use with helmets or hardhats. Powerful LED at 170 lumens reaches up to 65 meters on High. Short-range illumination on Low for up to 100 hours. Press-and-hold off prevents unintentional deactivation. Includes standard nylon head strap, plus optional rubber strap for use with helmets or hard hats. Powered by 3 AAA Alkaline batteries. Rated IPX7 for continual immersion up to 1 meter. Intrinsically safe and UL Rating: Class I Division 1, Groups A, B, C & D; UL Temp Code: T4.