Satya's blog - LCD Flat panel power consumption

40 mA 2 watts on standby versus 350 mA 25 watts on full power. 19" flat panel. Compare 60+ watts for a 17" CRT at 820 mA.

Okay, a table:

LCD/CRT	Current	Power	Voltage (calculated)
19" Flat-panel standby	40mA	2W	50V
19" Flat-panel full power	350mA	25W	71.42
17" CRT	820mA	60+W	73

Obviously, the numbers are wrong. The voltage was always 120V.

Updated again: Obviously, the simple P=VI formula doesn't apply for inductive and capacitive loads. See "power factor".

Updated again: I went alittle nuts with the meter. An incandescent 3-level bulb takes 50-100-150Watts at about 300-400mA for the lowest (or middle? I don't remember and am too lazy to measure again) setting. A CFL bulb takes 10-19-28 Watts at about the same current, because of power factor. This meter does have a PF setting.

Last updated: Feb 26 2007 23:14