Product Details Product Name 82-inch LED-backlit LCD screen stand-alone model HAT820-L04 LCD screen size 82-inch LCD screen aspect ratio about 16:9 Viewing Angle 178 ° / up and down 178 ° Brightness 2000cd / ㎡ Contrast 2000:1 distinguish rate 1920 * 1080P Color 16.7M Response time 6.5ms the standalone power consumption 2100W LCD screen life of 80,000 hours for the humidity of 10% -90% Operating Temperature 0 ° C - 50 ° C Technical Features: 1, more green and environmentally friendly products, doubling energy saving new energy application, new saturated color display 4, the speed of the liquid crystal response time, twice the service life of the ultra-high 6, no security worries of low pressure, stability good seismic performance, ultra-thin smart light the structure of the four core technology 1) smart dog) heating and cooling A 3) Polar Blue 4) security core five features, intelligent environment photoreceptor function automatically according to the ambient brightness adjustment to display the best results of the LCD screen; 2, the high and low temperature protection features: low temperature with automatic temperature adjustment function avoid frostbite LCD screen does not work; high temperature over LCD normal working limit backlight automatically turns off when the temperature returns to normal operating temperature automatically open in order to achieve the protective effect; 3 LED pre-heating function LED unique work boot to normal temperature at low temperatures with LCD; efficient ultra-low-power white LED backlight module of Blu-ray technology to bring high-performance super-stable LCD working condition; 5, low-voltage constant current driver The system is low-voltage driver circuit design, to bring equipment safety performance is excellent.