eTopLighting 6 Packs of LED Green Exit Sign Emergency Light Combo with Battery Back-Up, EL2BG-6;

(6) x 12 LEDS per Head : More Brighter

The most compact & slim type in the market
Back & Ceiling Mountable, Extra Face plate included (double side) & Universal Easy snap mounting canopy.
Energy Consumption of less than 2 watts - LED lamp life of 25 years plus
Compact, low profile design in neutral finish
120/277 VAC dual voltage input
Automatic, low voltage disconnect (LVD) protects battery from deep discharge
Universal pop-out arrows can be put back in if desired
(latest chevron code-UL924)
ETL listed (Damp Location, too)
Fully-automatic operation to test switch
Battery AA NiCAD 3.6V 900mAh