This flashlight is certified intrinsically safe by cETLus, KOSHA, ATEX, IECEx and INMETRO for use in hazardous locations both above and below ground where explosive gases and dust may be present. This light uses a 200 lumen LED that works with a deep parabolic reflector to create a 143 meter light beam. The tail switch provides momentary or constant functionality. Meets the requirements of NFPA-1971-8.6 (2013). Powered by 3 AA batteries (not included). The mount can be attached to either side of the helmet to provide hands-free lighting. Set the light in a precise position with the angle of 140 degrees.