This Dual-Lite approved sealed lead acid (SLA) battery, part number 0120255, is made with the highest quality components and provides 4-4.5Ah of emergency backup capacity. It supplies 2.0A at 6V for 90 minutes to an end voltage of 5.25V, as specified by UL 924. This battery has been approved by Dual-Lite for use with its CV, CVT, DEX, EZ-2, EZ-2R, HCX, LM, LT, LZ and SL1 emergency light and exit sign products and meets pressure release test requirements specified in UL 1989. WARNING: The use of unauthorized batteries in life safety products may cause product failure and increases the risk of injury to those you or your company are trying to protect. Additionally, use of batteries that are not approved by the Original Equipment Manufacturer may void the product's warranty and exposes you or your company to increased potential for litigation. Only batteries approved by Dual-Lite are authorized for use with Dual-Lite products.