The Sure-Lites Emergency Light SELM series is designed to reduce egress system cost and maintenance as well as improve reliability. Key features include long life LED’s, proprietary adjustable accuLED optics, a nickel cadmium battery and a rugged sheet metal housing. SELM is available with two or three 300 lumen heads that create up to 80 feet of emergency egress coverage. The Patented external battery disconnect and EZ Hang features reduce installation time and cost. The self-diagnostic capability automatically performs NFPA required testing. This product is City of Chicago compliant and New York City compliant