12V / 2.1A Plug-In EU AC/DC Adapter Technical data Input rated voltage:100-240V AC Input max.Voltage:90-264V AC Frequency:47-63Hz Output voltage:12V DC Output Current:2.1A Max output power:25W Protection Short circuit protection Over voltage protection Over current protection Environmental specification Operating temperature:-5C 45C Storage temperature:-20C 70C Humidity < 93% (42+-2C) General specification Dual-color indicator:(Charging:Red;Fully charged or no load:Green) Light weight and compact High efficiency and low power consumption Reliability specification MTBF:Calculation 50,000 hours at maximum load levels and an ambient temperature of 25C (in correspondence with MIL-HDBK-217)