Power Management ModesIf you have VESA's DPMS compliant display card or software installed in your PC, the display can automatically reduce itspower consumption when not in use. If input from keyboard, mouse or other input devices is detected, the display willautomatically "wake up". The following table shows the power consumption and signaling of this automatic power savingfeature:This display is ENERGY STAR®-compliant .* Zero power consumption in OFF mode can only be achieved by disconnecting the mains cable from the display.ENERGY STAR® is a U.S. registered mark. As an ENERGY STAR® Partner, DELL has determined that this product meetsthe ENERGY STAR® guidelines for energy efficiency.EnvironmentalTemperature:Operating 41° to 95°F (5° to 35 °C )Nonoperating -4° to 140°F (-20° to 60°C )Humidity:Operating 10% to 80% (noncondensing)Nonoperating 5% to 95% (noncondensing)Altitude:Operating 3,048 m (12,000 ft)Nonoperating 12,192 m (40,000 ft)Thermal dissipation 213 BTU/hour (maximum)205 BTU/hour (typical)Power Management DefinitionVESA's Mode Video H-sync V-sync Power Used Power Saving LED colorONActive Yes Yesmaximum 55Wnormal 50W0% GreenStand-by Blanked No Yes <=3W >80% AmberSuspend Blanked Yes No <=3W >80% AmberActive-OFF* Blanked No No <=1W >80% Amber