Hykolity 15W 25-48VDC LED Emergency Backup Battery, Rechargable LED Emergency Driver for 15-225W LED Light with External Driver,90 Minutes Min Emergency Time and 24 Hours Min Recharge Time. Power and Voltage: Selectable emergency power 8W,12W,15W.Universal input (100-277Vac).Constant output power Auto sensing output within each range),Output LVLE Compliant Illumination Time: 90 Minutes,Recharge Time:24Hours Battery protections: over voltage protection low voltage protection, over temperature protection, short circuit protection Applications: led products 15-225W with external driver, like led Panels, led troffer, LED highbay and etc 5 Year Warranty - Hykolity's 5-Year Warranty means we got you covered! Contact us if any issue arises.