Lavex Industrial Remote Capable Red LED Exit Sign / Emergency Light Combo with Adjustable Arrows and Ni-Cad Battery Backup - 4.2 Watt Unit (2W Remote Capacity)
AmazonCommercial Acrylonitrile Butadiene Styrene LED Emergency Exit Sign, UL Certified, 1-Pack, Double Face Exit with Battery Backup: Amazon.com: Tools & Home Improvement