The HLEBS Series is a self-contained hazardous location emergency lighting system which is designed for environments known to have high concentrations of gas, explosive vapors and dust. The HLEBS is intended for use in oil and gas refining, chemical production and storage, grain processing and paint manufacture. The HLEBS provides emergency illumination for a minimum of 90 minutes in the event of power outage. Class I, Div. 1 & 2, Groups C, D; Class I, Zones 1 & 2, Groups IIB, IIA; Class II, Div. 1 & 2, Groups E, F, G; Class III, Div. 1 & 2; Type 4 enclosure for NEMA4X and wet location.