The Byron emergency batten lights with Diffusers are the perfect solution for projects and economic applications. This 1200mm four-foot twin batten comes with an Emergency light and external access quickie module with an easy-to-install slide base. An optional plug-and-play Beacon sensor module is available for energy-saving applications. Autonomous and periodic self-testing will have detailed results prior to your next visit for unparalleled accuracy, convenience and time-saving.