8294400 pixels (8.29 million, 'mega') 3840x2160, the 3840 being the 4K, otherwise known as 'ultra-hd'.
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My cameras are DS-2CDVT-FCM-S bullet type, 4K/8MP, 1/2.5" CMOS, 4mm, 95 diagonal, color 0.01 lux @(F1.2, AGC ON), and seem to do well in the dark. Mine were sold as 'ezviz CS-CV110...