Power - high light output for every situation Mid Power - medium light output for every situation Low Power - economical light for long battery life, glare-free reading and working. Advanced Focus System (AFS) - for efficient, precise flood and spot lighting Ultra-compact flashlight - only 36 g and 103 mm (defocused) Eco-friendly - rechargeable battery (via micro-USB port) Outstanding Ledlenser light quality - brightness, beam range and run time are ideally matched to the energy source. By using rechargeable batteries, you\'re not just protecting your wallet, but also the environment. Regular batteries, after all, require up to 500 times more electricity to produce than they can release themselves. Combined with the energy consumption for transport and storage, the CO2 emissions are huge. For home and life. Designed for a wide range of applications for everyday or on the job use. Equipped with Ledlenser’s latest technologies and great functionality, the Core Series gives people the opportunity to experience the best parts of our lighting products in everyday life. Rechargeable battery supplied.