Introduction: Meet the Hikvision DS-2CD2047G3-LI2UY/SL
The Hikvision DS-2CD2047G3-LI2UY/SL is a compact yet capable 4 MP ColorVu mini bullet network camera designed for round‑the‑clock outdoor surveillance. Combining a large 1/1.8" progressive‑scan CMOS sensor, an ultra‑bright F1.0 lens and Smart Hybrid Illumination (white light + IR), this model delivers full‑colour video at very low light levels and a strong deterrence package with built‑in speaker, dual microphones and an active siren/strobe alarm. With PoE+ support, ONVIF compatibility and on‑board microSD storage up to 512 GB, it’s positioned for professional perimeter, parking and entrance monitoring as well as advanced DIY installations.
Key features at a glance
- 4 MP ColorVu imaging:2688 × 1520 resolution with full‑colour capture in very low lux thanks to an F1.0 aperture.
- Smart Hybrid Illumination:White light and IR combo with supplemental lighting up to 40 m for clear night detail and effective deterrence.
- Audio & active deterrence:Built‑in arrayed dual microphone, speaker and audible/visual alarm (siren + strobe).
- Deep‑learning analytics:Human/vehicle classification, perimeter protection and face capture to reduce false alarms.
- Flexible integration:PoE+ (IEEE 802.3at) or 12 VDC power, ONVIF support, H.265+/H.265/H.264 compression and microSD storage.
Detailed specifications and benefits
This camera blends a high‑quality image chain with practical installation features. Below are the main specification areas and the benefits they deliver.
- Sensor:1/1.8" progressive‑scan CMOS — a relatively large sensor for a mini bullet, enabling better light gathering and improved dynamic range compared with smaller sensors.
- Resolution:2688 × 1520 (4 MP) — sharp enough for identification at moderate distances while keeping storage and bandwidth requirements lower than 4K alternatives.
- Aperture & low‑light:F1.0 aperture and ColorVu technology provide full‑colour images at extremely low illumination (0.0001 lux at F1.0 with AGC on), and 0 lux when the supplement light is active.
- Shutter:1 s to 1/100,000 s — suitable for a variety of lighting and motion conditions without excessive motion blur.
- Fixed lens:2.8 mm offering a wide field of view (H 111.1°, V 57.6°, D 138.5°). Ideal for monitoring broad areas such as forecourts, small parking lots and building approaches.
- Smart supplement light:Combination of white light and IR with an effective range up to 40 m. White light enables full‑colour evidence capture at night and acts as a visual deterrent; IR extends viewing when covert monitoring is required.
- IR wavelength:850 nm — commonly used infrared for long‑range illumination.
- Codecs:H.265+/H.265/H.264/H.264+ — modern compression reduces bandwidth and storage without sacrificing too much image quality.
- Frame rate:Up to 25/30 fps at 4 MP — smooth video suitable for identifying movement and capturing facial detail at typical surveillance distances.
- Storage:On‑board microSD up to 512 GB plus NAS support (NFS, SMB/CIFS) and network recording via ONVIF‑compatible NVRs/VMS.
- Audio:Built‑in arrayed dual microphone and speaker support two‑way interaction, local announcements or recorded audio evidence. Multiple supported codecs (G.711, AAC‑LC, MP3, etc.) ensure integration with diverse systems.
- Active deterrence:Speaker with siren and strobe can be triggered manually or by analytics to deter intruders.
- Deep‑learning analytics:Human/vehicle classification, perimeter protection and face capture reduce nuisance alarms and prioritize meaningful events for operators.
- Network:ONVIF (S/G/T) and common network protocols for compatibility with major NVRs and VMS platforms.
- Power:PoE+ (IEEE 802.3at) simplifies cabling for installations that need the higher power budget for lights and active deterrence; 12 VDC is supported as an alternative.
- Environmental:IP67 and NEMA 4X ratings, plus an operating range of −30 °C to 60 °C and non‑condensing humidity tolerance, make this camera robust for exposed outdoor locations.
Use cases and where this camera excels
The DS‑2CD2047G3‑LI2UY/SL is tailored to environments that demand clear visual evidence at night, reliable perimeter detection and proactive deterrence. Typical applications include:
- Perimeter and fence lines:Wide field of view and long‑range illumination make it effective for monitoring building perimeters, construction sites and secured compounds.
- Car parks & forecourts:ColorVu ensures licence plates, clothing colours and vehicle details remain visible after dark, while analytics filter pedestrian and vehicle events to reduce false alerts.
- Retail and forecourt protection:Two‑way audio, siren and strobe help staff react to incidents quickly and deter theft or vandalism.
- Entrance and gate monitoring:Face capture and human classification assist access control workflows and post‑event investigations.
How it compares with similar cameras
In the current market, you’ll find many 4 MP and 5 MP outdoor cameras. The DS‑2CD2047G3 stands out in a few areas:
- Low‑light colour performance:Compared with standard low‑light IR cameras, ColorVu with an F1.0 lens delivers more useful, colour‑accurate footage at night, which is critical for recognition tasks. Some competing models require additional lighting or only provide monochrome IR imagery at night.
- Integrated deterrence:Not all cameras combine white light, speaker and strobe/siren in a single compact housing. Many alternatives need separate accessories for effective active deterrence.
- Analytics:Deep‑learning based human/vehicle classification is becoming more common, but implementation quality varies. Hikvision’s analytics here are integrated with perimeter protection and face capture, which can reduce operator workload compared with simpler motion‑based triggers.
- Power demand:The active lighting and audio features require PoE+ to run optimally; some competitors with lower power needs may operate on PoE (802.3af) but without equivalent illumination/deterrence features.
Customer feedback and installer impressions
While individual reviews will vary depending on installation conditions, common installer and user impressions of similar Hikvision ColorVu models generally include:
- Pros:Excellent night‑time colour detail, straightforward PoE+ installation, and powerful deterrence options appreciated by retail and facility managers. Deep‑learning analytics are frequently noted as reducing false alarms.
- Considerations:Active light and audio features increase power draw (PoE+ recommended). Installers also remind end‑users to verify local regulations regarding audio recording and public‑space lighting prior to use.
- Integration:ONVIF support typically enables smooth integration with major NVR/VMS platforms, though some advanced analytics functions are best experienced when using Hikvision’s own ecosystem.
Conclusion: Why the DS-2CD2047G3-LI2UY/SL is a strong choice
The Hikvision DS‑2CD2047G3‑LI2UY/SL offers a compelling combination of low‑light colour imaging, long‑range hybrid illumination and active deterrence in a compact, weatherproof package. Its 4 MP sensor and F1.0 lens deliver useful identification detail while modern compression and multi‑stream support keep bandwidth and storage manageable. Built‑in audio and siren/strobe features make it more than a passive recorder—this camera can actively influence incidents as they occur. Deep‑learning analytics further reduce nuisance alerts, helping security teams focus on real events.
For perimeter security, car parks, retail forecourts and entrance monitoring where nighttime color detail and active deterrence matter, this model balances performance and practicality. Prospective buyers should plan for PoE+ power and confirm any local rules for audio or lighting. With a suggested price of approximately $199 (check current local pricing and reseller terms), the DS‑2CD2047G3‑LI2UY/SL is positioned as a feature‑rich option for installations that need more than a basic outdoor camera.
Note:Always confirm CE/UKCA markings, warranty terms and compliance with local regulations with the manufacturer or an authorised reseller before purchase and installation.
