Powersonic PSC-122000A Sealed Lead Acid Battery Charger - Automatic Switchover 12 volt/2 Amp Nominal Electronically regulated - current limited chargers for sealed lead-acid type batteries. Wall mount plug-in design for 250, 300, 500, 800 series and 61000A; counter top design for 241000A, 2000, 4000 and 10A series. Operating temperature range: 32oF - 104oF (0oC - 40oC). Input voltage: 110/120 VAC, 60Hz. 122000A and 241000A can be switched to accept 220/230 VAC, 50Hz. LEDs: For 250A &amp; 500A series: