📷 Key Specifications

Model: Dahua DH-HAC-B1A21P-U-IL-A
Type: 2MP Smart Dual Light HDCVI Fixed-focal Bullet Camera

📺 Video & Image
• Sensor: 2MP CMOS image sensor
• Resolution: Full HD 1080p (1920×1080)
• Frame Rate: Up to 30 fps @ 1080p
• Scanning: Progressive

🔦 Smart Dual Light Night Vision
• Combines infrared + warm light to give clear color images even in low light or dark environments.
• Night view distance: ~30 m for IR and ~20 m for warm light illumination (approx)

📡 Lens & Field of View
• Fixed-focal lens: 3.6 mm (optional 2.8mm or 6 mm)
• Good wide coverage depending on lens choice

🔄 Signal Compatibility
Supports multiple analog formats:
• HDCVI / CVBS / AHD / TVI switchable — works with a wide range of DVRs.

🎤 Audio
• Built-in microphone (Mic) for audio recording with video.

🌧️ Durability & Installation
• IP67 weather-resistant housing — suitable for outdoor installation in rain and dust conditions.
• Easy to install with standard coaxial cabling.
• Power: 12 V DC

📷 Image Enhancements
Often includes basic image processing features like:
• Auto White Balance (AWB)
• Automatic Gain Control (AGC)
• Backlight Compensation (BLC), High Light Compensation (HLC)
• Digital Noise Reduction (2D-NR)

📍Use Cases
Great for homes, shops, offices, warehouses, etc., where clear day/night surveillance with audio is needed and you are using analog CCTV infrastructure.