eTopLighting 2 Packs of LED Red Exit Sign Emergency Light Combo with Battery Back-Up UL924 ETL listed, EL2BR-2 Chevron arrow-pop out(UL924) | ETL listed w/ damp location Combination LED energy saving exit sign and emergency lighting unit in one compact, modern design Fully automatic operation,low voltage disconnect (LVD) Push to test switch Completely self-contained