BY-Z1105S Surface-Mount LED Emergency Downlight

The BY-Z1105S is an upgraded, high-output version of the Z1103S, designed for projects requiring superior light levels from a discreet, recessed ceiling fixture. It is primarily used in high-end commercial spaces, luxury hotels, and modern office corridors. The unit is a Maintained/Non-Maintained switchable luminaire that delivers a powerful 250 to 300 lumen output during power failures. Its hallmark is the Automatic Self-Testing (ST) capability, which utilizes an onboard microprocessor to conduct mandatory monthly functional tests and annual duration tests, signaling the system status via a bi-color LED indicator. Built with a high-capacity Lithium Iron Phosphate (LiFePO?) battery, it offers exceptional thermal stability in ceiling voids and a service life significantly longer than traditional Ni-Cd alternatives.