The self-powered tritium gas luminescent tubes in the Ever-Green series of self-luminous exit signs provide illumination for as many as 20 years without electricity. These spark-proof, explosion-proof, and maintenance-free signs require no wiring, electrical connections, or batteries. They provide a minimum letter brightness of 0.15 foot-lamberts and are housed in an all-plastic, high-impact, sealed casing that’s waterproof. Available with red, black, and green face covers in black or white housings, the signs come with a universal mounting bracket.
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