．0.1lux @ F1.2 minimum illumination

．EV8581U-B: 4mm Fixed, F1.5 Lens

．EV8581U-C: 2.8~10mm Motorized Lens with auto-focus

．Day / Night Mode, built-in ICR

．Two-way Audio, built-in Microphone

．H.264 / MPEG-4/ M-JPEG

．4 ROI with independent streams

．Vandal-proof, IP66

．SD/SDHC auto-recovery/Reset

．802.3af standard A/B compliant PoE (for EV8581U-C only)