Lenovo ThinkSystem DE Series Hardware Installation And Maintenance Manual page 25

Specification
Power input
Environment requirements
DE120S
Input power voltage:
• Low range: 100–120 V ac
• High range: 200–240 V ac
• Air temperature:
– Operating: 10°C to 40°C (50°F to 104°F)
– Storage or shipping: –40°C to 70°C (–40°F to 158°F)
• Relative humidity:
– Operating: 20%–80%
– Storage: 5%–95%
– Shipping: 10%–95%
• Altitude range:
– Operating: 0 m to 3045 m (0 ft to 9988 ft)
– Storage: –305 m to 12 192 m (–1000 ft to 39990 ft)
Note: If you plan to operate a system at an altitude between 3280 ft to 9842 ft (1000
m to 3000 m) above sea level, lower the environmental temperature 3.1°F (1.7°C) for
every 3280 ft (1000 m) above sea level.
. 19
Chapter 1 Introduction