... option)Beam Angle40 D, 25DCorrelated Color Temperature 3000 K(4000 K,5000K option)Luminous ... for recycling Protect eyesight, dc drives, no stroboscopic High luminous efficiency, 90% of electricity can transform into visible light. Compared with the traditional high ... of SYS9290 ar111 led lamp:Living room, bedroom, kitchen, washroom;School, university, hospital, hotel;Conference, meeting room, show room ...