Einstein Duo 400 - Natralock

EINSTEIN DUO 400 - Natralock The EINSTEIN DUO 400 is a compact, 400lumen headlamp that offers adjustable, portable lighting so you can keep your hands free With two light sources and two color options, the EINSTEIN 250 provides multiple lighting solutions for a variety of tasks Featuring Flex-Power technology, which allows the headlamp to run on 3xAAA Alkaline batteries which are included or a rechargeable Li-Ion battery which is not included