University of South Florida (46,612 students) â Coming in as the 9th largest university in the U.S., the University of South Florida, located in Tampa, is a public institution founded in 1956. It is the second university in Florida to make the top ten list in terms of student enrollment.
Re: LED's glow when off most likely it is circuit leakage of the light itself. A fraction of a milliamp can cause an LED to glow but not put out useable light and the amount of energy used over a year is probably just a few pennies so I wouldn't put a lot of effort in trying to fix it if that is the issue.
LEDs create light through electroluminescence. Light is emitted when electrons and holes recombine in a material, most commonly a semiconductor. The spectrum, or color, of light emitted is determined primarily by the constituent materials of the semiconductor and by phosphors â chemicals used to coat the LED die.