Lenovo K2450 Notebook - Manual (Page 22)

8 User Guide
Wireless features
• Integrated wireless LAN
• 100/1000 Mbps Ethernet communication
Specifications
This topic lists the physical specifications for your computer.
Heat output
• 45 W (222 Btu/hr)
Power source (ac power adapter)
•
Sine-wave input at 50 to 60 Hz
• Input rating of ac power adapter: 100 to 240 V ac, 50 to 60 Hz
Battery pack
• Lithium-ion (Li-ion) battery pack