A = consistent, good-quality patient-oriented evidence; B = inconsistent or limited-quality patient-oriented evidence; C = consensus, disease-oriented evidence, usual practice, expert opinion, or case series.
An LED driver is the power supply for an LED system, much like a ballast is to a fluorescent or HID lighting system, says Al Marble, manager - sales & market development for Philips-Advance Transformer.
But what are these drivers and how do they work? Well, in computing, a device driver (also be called a software driver) is a computer program that allows higher-level computer programs and applications to interact with a hardware device (like your mouse, keyboard, monitor, video board, and so on).