The Grainger lighted exit signs are durable and reliable signs that clearly indicate emergency exits in commercial, industrial, and institutional buildings. They feature LED lamps that provide bright illumination and last up to 10 years. The signs come in various styles including single-sided, double-sided, and universal mounting options. They are made of durable plastic or aluminum housing and are UL listed for wet locations. The exit signs operate on battery backup and automatically switch to emergency mode when the power goes out. Overall, these are high-quality, long-lasting exit signs that meet code requirements and ensure safe egress.