A:Answer500 nits is bright enough to combat ambient light in the environment, but the Neptune Outdoor TVs are not engineered to be placed in direct sunlight and need to be installed in shaded areas.
A:Answer300 x 200 mm
https://www.bestbuy.com/site/peerless-av-neptune-55-shade-series-outdoor-4k-uhd-tv-with-included-outdoor-rated-tilt-mount/6456741.p?skuId=6456741
A:AnswerYes you can connect a sound bar dependent on the type of connection and connect to an Apple TV . PLease refer to page 9 https://cdn.shopify.com/s/files/1/0508/3732/3934/files/User_Guide_Neptune_Shade_Series_Digital.pdf?v=1612473807
The mount only allows the Display to be attached to a wall.
Please see the spec sheet for temp details etc. -22F up to 122F
https://cdn.shopify.com/s/files/1/0508/3732/3934/files/Neptune_ShadeSeries_OutdoorTVs_55in_65in_75in_PDS_LIT1803rev1_email.pdf?v=1620402568
A:AnswerThe shade displays need to be in the shade and not direct sunlight . It is weatherproof for dust and water as it requires the panel cover to be kept screwed on with your connection cables contained at all times.