The redesigned X-Plus ultraviolet fixture from UV Resources now holds lamps up to 61 inches. The company says its new extended base lamps are central to ease and function in exterior-mounted fixtures for HVAC systems, air handlers, plenums or ducts. The exterior mount fixture is ideal for hard-to-access outdoor and indoor HVAC equipment, officials say. Suitable for new and retrofit systems, advantages include reliability and ease of service, the company said.

UV Resources, P.O. Box 800370, Santa Clarita, CA 91380-0370; (877) 884-4822; fax (661) 296-4856; www.uvresources.com.