Specifications include, but are not limited to: A.20 each of the Vandal Resistant Self Luminous Exit Signs – Institutional Aluminum Frame Red Legend model 2040-70R-20 BA or equivalent with below specifications: 1.Requires no electricity or external light source 2.Maintenance free- no lamps or batteries to replace 3.Easy to install – no wiring required 4.Approved for low level or above door use 5.Service life 20 years 6.Letters6’’high7.UL listed to UL 924 Standard, NFPA Life safety code 101 8.Single face red / frame brushed aluminum 9.Mounting hardware included B.20 each Return of expired Tritium Exit sign face, (one for one exchange) (Must include return packaging and labeling of expired signs returned using Return Material Auhorization).