UPS Switching Power Supply 120w 12v 24V with UPS/Charge Function — DC Battery Charger, Current Stabilizer, Low-loss

AC input selectable by switch for convenient setup. Built-in protections: short circuit/overload/over voltage. Cooling is by free air convection (no fan). Every unit is subjected to a 100% full load burn-in test. No limitation on battery chemistry — compatible with lead, lithium and other batteries.