Model HLE/MLE-30 is a high-quality, polycarbonate projector that creates a 120° x 60° pattern for wide area coverage. ** Use with HLE or MLE explosion-proof compression driver assemblies to provide engineered, high-efficiency voice and electronic signal communication in hazardous areas. ** **ONLY The HLE/MLE-30 and the HLE/MLE-32 Horns are UL Listed for use with the HLE or MLE Line of Explosion Proof Drivers **
