A single garden-variety LED draws 20mA when lit. Unless your meter can read down to μA, 1 or 2 mA is a rounding error, and of no concern. My cigarette-lighter USB charger has a blue LED for backlighting, so there's 20mA even when nothing is plugged into it.
-Kevin
This is what happens when you live with a house-full of women, the wife and daughters name all the cars: 1960 Impala - "Frankie" (Frank Sinatra) 1961 Apache - " 'Mater Jr." (wrecker) 1965 Corvair Monza Convertible 1967 C20 "Ol' Blue" (hidden in a log cabin for 30 years) 1972 SuperBeetle Convertible - "Juliet" 1976 SuperBeetle Convertible - "Olaf" 1988 Alfa Romeo Spider Veloce - "Romeo" |