Lithonia Lighting LHQMSW1R 120/277 RED Quantum Red LED Combo Exit/Emergency Light with Back-Up Battery Conveniently located test switch and status indicator provide visual and manual means of monitoring system operation. Universal mounting capability  top, back or end (canopy provided). The self diagnostic emergency signs comply with NFPA Life Safety Code and automatically test the battery once a month for five minutes and once every six months for 30 minutes. Automatic recharge after discharge.