LED Exit Sign with Battery Backup - Single or Double Face | Super Bright LEDs
Zenith Safety Products Exit Sign, LED, Battery Operated/Hardwired, 12-1/5" L x 7-1/2" W, English | Zenith Safety Products
Non Electric Exit Signs With Long Battery Life Emergency Lights
Amazon.com: Ciata Red Light up Hardwired and Battery Operated Exit Signs with Light for Wet Location, Exterior, Weatherproof, Led Illuminated, Corded Exit Sign Battery Powered Emergency Light with Battery Backup : Tools
Lavex Industrial Slim Green LED Exit Sign / Emergency Light Combination with Battery Backup - 2W Unit