A T8 Combined Module incorporating the latest high frequency ballast technology together with the appropriate inverter circuits. This combined unit features an extensive range, emergency duration of 3 hours as standard, recharge period of only 20 hours, supplied with IDC/push-wire terminals, which are suited to automatic and manual assembly, each zinc galvanised steel XCU unit incorporates a constant current charge circuit with deep discharge protection. The low-profile unit provides flexible mounting options and is compatible with most louver and diffuser luminaires. It offers CE marked and in compliance with the EMC directive for both mains healthy and mains failed modes. This combined unit is suitable for use with linear and TC-L fluorescent lamps.