Dahua DH-HAC-B1A21P-U-IL-A

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DAHUA DH-HAC-B1A21P-U-IL-A 2MP 2.8MM Smart Dual Light HDCVI Fixed-focal Bullet Camera

Category	Specification
Image Sensor	1/2.7″ progressive CMOS, 2 MP (1920×1080)
Shutter Speed	PAL: 1/25 s–1/100 000 s; NTSC: 1/30 s–1/100 000 s
Min. Illumination	0.02 Lux @ F2.0 (Color, 30 IRE); 0.002 Lux (B/W); 0 Lux with illuminator on
Lens	Fixed M12; 2.8 mm, 3.6 mm, or 6 mm (F2.0)
Field of View	2.8 mm: H 100°/V 54°; 3.6 mm: H 80°/V 43°; 6 mm: H 43°/V 24°
Close Focus Distance	2.8 mm: 0.5 m; 3.6 mm: 0.8 m; 6 mm: 2.4 m
Illumination	Smart dual light: IR up to 30 m, warm LED up to 20 m
Smart Dual Light	Automatically switches to warm LED on target detection; reduces light pollution
Audio	Built‑in microphone with audio over coax
Video Output / Frame Rate	Switchable CVI/AHD/TVI/CVBS via BNC; up to 1080p@25 fps (PAL) or 30 fps (NTSC)
Image Settings	DWDR; BLC; HLC; 2D NR; Auto/area white balance; privacy mask (8 areas); mirror
S/N Ratio	> 65 dB
Long-Distance Transmission	Up to 700 m via coax (2/5/8 MP), and up to 300 m via UTP
Network/Protocol	HDCVI coax-based (no IP); PoC; support for audio & data
Power	12 V DC ±30%; power consumption max 3.3 W (LED on)
Environment	IP67; operating temp –40 °C to +60 °C; humidity ≤ 95% RH
Dimensions & Weight	146.1 × 70 × 69.8 mm; net ~0.15 kg, gross ~0.20 kg
Material	Plastic housing