The Manta is a headtorch with integrated battery compartment. The dimmable 100 lumen Cree L.E.D. delivers a bright beam, the width of which is adjustable using the front focussing ring. The main high output Cree L.E.D. can be dimmed to any level between 10 and 100 percent as well as a strobe setting for attracting attention. Underneath the main beam are 4 low power LEDs. Green for map reading without affecting night vision. Double red, gives enough light to see features when walking but doesn't affect your or your companions night vision. Blue, gives a wider less focussed beam than the main bulb (just 5 lumens) but with a longer burn time.