Definity(TM) Ranks Amongst the Best PAR 30 Reflector Lamps on the Market Today Lighting Science Group Corporation® (OTCQB: LSCG), one of the world's leading LED lighting technology companies, announced that its DEFINITY™ PAR30 LED lamp has been recognized by the IEE, an Institute of the Edison Foundation, as one of the TOP TEN best LED lamps. Using an innovative approach that factors in energy efficiency, light quality, cost, and consumer appeal, three energy efficiency leaders -- IEE, TopTen USA, and Ecova ...