The THX ES25W provides emergency operation for one hour duration using 230V ES, LED lamp or 230Vac device up to 25W load. Lamps will deliver 100% light output in emergency mode. This level of light output means that the THX ES25W becomes a perfect choice when high output emergency lighting is required to provide good visibility for emergency situations in an exterior or interior application when using a single ES lamp.

This emergency lighting control unit incorporates a self-testing facility that exercises the batteries and establishes lamp condition on a regular basis. Automatic tests are conducted monthly with full functional tests every 6 months. The monthly tests, of two minutes duration, establish battery and lamp condition whilst the 6th month tests last 40 minutes to remove battery memory effects. System faults are reported via both audible and visual means.