Assessment of energy efficient LED ballasts based on their weight and sizeMilaševski, Irena; Tetervenok, Oleg; Galkin, IljaScientific journal of Riga Technical University. Serija 4, Power and electrical engineering2011 / p. 105-112 : illhttps://ui.adsabs.harvard.edu/abs/2011SJRUP..29..105M/abstract