Low brightness, High Gray, low brightness, High Gray Technology, 50-800nits brightness adjustable, 30% low brightness (more than 240nits) gray level to maintain more than 12 bit, delicate picture quality, color uniformity, in indoor low brightness environment for a long time do not damage the eyes. Lightweight, easy to maintain full die-cast aluminum structure, lightweight, 100,000 hours of trouble-free stable operation; magnetic unit module before maintenance, easy to maintain. Low Radiation, ultra-quiet, using more safe and high EMC design standards, low radiation, all-die cast aluminum metal heat dissipation, no fan quiet design, safe, environmental protection, quiet working environment.