... etc, adopts optical, electrical, thermal, structural science and technology theory to be researched, developed and produced.Unique Features ... mercury, no UV, no IR;3, PWM constant current technology, high efficiency, low heat, high precision constant current, ... InfoEXWPacking Info25 pcs / cartonTarget Market(s)Africa, Eastern Europe, Hong Kong/ Macao/ Taiwan, Japan & Korea, Latin America, Mainland China ...