The MYO headlamp is perfectly adapted to endurance activities, thanks to its balanced weight distribution on the head. Performance is based on CONSTANT Lighting technology (STANDARD Lighting in Maximum mode). : - Powerful, high performance Lighting (370 lumens in Boost mode and 280 lumens in Maximum mode).- Multi-beam Lighting: wide-angle flip lens that shifts instantly from a wide beam (proximity Lighting) to a focused beam (long-range vision)- CONSTANT Lighting technology for Economic and Optimum modes:- brightness does not decrease gradually as the batteries drain- automatically switches to reserve mode when batteries are nearly spent- STANDARD Lighting technology in Maximum mode.- Several programmable Lighting modes to adapt light intensity and burn time to the activity- Reliable and rugged:- battery charge indicator light: warns when the batteries are approximately 70 % then 90 % discharged- switches are protected from accidental operation when light body is in upright position- water and weather resistant for all-weather use (IP X4)- Comfortable and stable in action: included top strap provides additional stability when needed- Perfect for endurance activities:- long burn time- lightweight: 175 g- balanced on the head for comfortSpecifications:- Weight: 175 g- Technology: CONSTANT Lighting and STANDARD Lighting- Beam pattern: wide and focused- Energy: 3 AA/LR06 batteries (included)- Battery compatibility: alkaline, lithium (same brightness with 2x the burn time), Ni-MH rechargeables (same brightness with 1.5x the burn time), Ni-Cd rechargeables- Certification(s): CE- Watertightness: IP X4 (weather resistant)If you are looking for an online store specialized in running & triathlon equipment, discover Petzl Online Store UK. As Petzl authorized dealer, all of our running & triathlon products have the full manufacturer warranty of Petzl. Select one of our Accessories categories and discover the range of Accessories products that we have for your favorite activity like Petzl Myo Rxp. To clear out any doubts, contact our team via telephone or email. Do not wait any longer!