MB 3.0 Hermes (Battery powered) is simply Genius! A combination of smart mechanics and efficient electronics, designed to survive extreme temperatures and harsh working conditions, 24 x 7. Penetrant resistant, with acoustic battery indicator and certified with an ingress protection marking of IP68. Beam profile covers an area of Ø 9 inches / 22 cm and generating an intensity of 4 500 µW/cm2 from 38 cm (15 inches). Battery running time is 3,5 hours. Batteries can be recharged by removing them or simply charged via an external charging cable. MB 3.0 Zeus has been tested to comply with ASTM E3022-18, Rolls-Royce RRES 90061, Airbus AITM6-1001, Pratt & Whitney and The Boeing Co as well as USAF Requirements. This light does not have white light.