Lithonia Lighting Exit Signs • 120/277V 6 H letters with 3/4 stroke; New York Approved have 8 H letters with 1 stroke Universal mounting capability Knockout chevrons for choice of direction Ni-Cd battery unless noted Quantum SeriesImpact-, scratch-, and corrosion-resistant housing snaps together with no additional fasteners; UV-stabilized to resist discoloration.UL Listed. UL 94 V-O flame rating. Meet UL924, NFPA 101, NEC, and OSHA illumination standards. Exit Sign w/ Bttry Backup, 0.60W, Green, 1 This product contains a chemical that is regulated under California Proposition 65. Warning This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.