The EMUFO-25170-YY emergency backup driver has a 100–347 V AC input and provides 25 W constant emergency output at 170 V DC. The manufacturer lists 90 minutes of emergency operation and a 24-hour recharge time.
The 25 W figure describes emergency output, not the connected light’s normal power or the backup unit’s mains consumption. The source lists 12 W input power separately.
The manufacturer lists a host-fixture ceiling of 150 W, subject to the correct LED driver and wiring. Dimming-wire connection is required for fixtures above 25 W. Wattage alone does not establish compatibility.
Named manufacturer pairings: KEM150SMCLVGB, RKRH0302LMW5KDNLCB. Confirm the exact supplied backup revision, fixture driver and wiring before installation. Check UK installation and emergency-lighting requirements for the complete system. Published emergency lumen estimates are not a photometric design guarantee.