This device cannot directly receive broadcast TV signals. Traditional cable TV programs can be viewed by connecting Mi Box. Mi Laser Projector 4K can connect to devices that support HDMI audio and video output. Light source lifespan 25000 hours at an ambient temperature of 35☌ and a current of 3.0 A, and 7500 hours of continuous operation, which refers to the time for the brightness of the IES TM-21 normalized light source to decrease to 50% of its initial brightness. Dolby Virtual Surround and Human Sound Enhancement Technology: Official DOLBY and Dts technical certified, DOLBY certification no. WT188006766, parameter floating label reference GBT28037 2011 Information Technology, General specification for projectors. SET2018-14072 Picture brightness: From Shenzhen Academy of Metrology and Quality Inspection, report no. Light source brightness: From Zhongjian Group Nanfang Electronic Product Testing (Shenzhen) Co., Ltd., report no. Distances are approximate and may differ from the actual distance. Ambient light blocking = 1 - reflective brightness × π/center vertical illuminance of projection screen in bright room conditions. Picture display size 2214 x 1245 mm, projector screen size 2234 x 1265 x 6 mm. A purchase of the set is needed for the projection screen 7. Adjustable picture size 40–200" recommended picture size 80–150" 6. Proportion of red light: From Shenzhen Appotronics Corporation Ltd, report no. Contrast: From Shenzhen Academy of Metrology and Quality Inspection, report no. 2.4K Picture: Test report from China Electronic Standardization Institute (CESI), report no. As of December 2018, more than 70% of theaters in mainland China that have been upgraded to laser projection use ALPD® 3.0 technology (source: CineAppo).
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