This Harmony XVB illuminated unit is supplied with 24V AC/DC and has a green LED with a steady light.This green indicating bank lens is designed as an illuminated unit to be connected with base and create complete tower light.Its integral LED offers a steady light, allowing it to clearly display the status of your machines in applications such as automotive, machine tool, material handling, packaging, assembly stations, conveyors.It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments.Simple and modular design to allow for easy installation with base unit and make complete tower light.