The Hubbell UL924BRUNV 20Amp 120/277V Emergency Lighting Control Relay EPC-A-1 #2H4A is a reliable and high-quality product designed for emergency lighting systems. Made by Hubbell, a well-known brand, this control relay ensures efficient and consistent power distribution to emergency lighting fixtures. With a model number of 2H4A and originating from China, this product is suitable for various industrial and commercial applications requiring a 20 amp, 120/277V power source for emergency lighting systems.