eTopLighting 1PCS LED Exit Sign Emergency Light Lighting Emergency LED Light/Modern Battery Backup UL924/Battery Back-up/Black/Red Letter, E3SCR-B-1 Dual Voltage 120/277 VAC, 60 Hz | Energy Consumption of less than 2 watt ETL listed w/ damp location | Chevron arrow-pop out(UL924) | Compact, low voltage disconnected (LVD) Extra face plate included(Double face) | Ceiling/back/side mountable(easy snap-fit canopy included) Battery Backup | Completely self-contained | Fully automatic operation Injection-molded, V-5 flame retardant, high impact, thermoplastic housing | LED indicator light