This Harmony XVU black base unit with top cover is supplied with 100-240V AC and has a diameter of 60mm.This base unit with top cover is designed to be fitted with indicator bank to create complete tower light and allow clear display of the status of your machines.It it is impact resistant, dust resistant, water resistant, corrosion resistant, and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments.Simple and modular design to allow for easy installation with illuminated unit via tube fixing and make complete tower light.It complies with international standards and certifications (CCC, CSA, UL, RoHS, EAC, CE standards).