Introduction: Hikvision DS-2CD2T46G2H-2I at a glance
The Hikvision DS-2CD2T46G2H-2I is a 4 MP outdoor fixed bullet network camera that combines advanced low-light imaging with intelligent detection. Branded in Hikvision's Pro / EasyIP (AcuSense) family and equipped with "Powered-by-DarkFighter" technology, this camera is designed to deliver clear, colour images in very low illumination, accurate human/vehicle classification to reduce false alarms, and robust outdoor reliability with IP67 weatherproofing. With a 2.8 mm wide-angle lens, PoE support and on-board storage, the unit is targeted at contractors and end users looking for a high-value outdoor surveillance solution without complicated extras.
- 4 MP resolution:2688 × 1520 at up to 25/30 fps for crisp, usable detail.
- DarkFighter low-light imaging:exceptional colour performance down to 0.001 lux (F1.0) for night-time clarity.
- AcuSense deep-learning:human/vehicle classification to reduce false positive alerts.
- Smart IR:night illumination to roughly 60 m on the 2I model.
- Image enhancement:120 dB True WDR, 3D-DNR, BLC/HLC for challenging lighting.
- Flexible connectivity:PoE (IEEE 802.3af) or 12 VDC plus 10/100 Mbps Ethernet and ONVIF support.
- Local storage:microSD up to 512 GB on-board.
- Rugged build:IP67-rated housing with wide operating temperature range.
Detailed specifications and benefits
The DS-2CD2T46G2H-2I uses a 1/3" progressive-scan CMOS sensor to deliver 4 MP imagery suitable for identification of faces and license plates at reasonable distances. The fixed 2.8 mm F1.0 lens provides an approximately 100° horizontal field of view — a wide perspective that reduces the number of cameras required to cover entrances, parking areas or wide walkways.
Where this camera stands out is the combination ofPowered-by-DarkFighterand AcuSense. DarkFighter improves sensitivity and colour rendering at extremely low light levels (listed as 0.001 lux at F1.0 with AGC enabled), meaning many scenes remain in colour rather than falling back to monochrome IR-only footage. AcuSense applies deep-learning classification to motion events so the system can prioritise human and vehicle detections and suppress many environmental triggers such as leaves, shadows and small animals — reducing time spent reviewing irrelevant alerts.
For difficult lighting conditions, the camera's 120 dB True WDR balances strong backlight and bright highlights against shadow detail, while 3D-DNR reduces sensor noise in low light without overly softening important edges. Smart IR delivers adaptive illumination up to around 60 metres for the 2I model, preventing overexposure of close objects while providing useful reach for patrol lanes and perimeters.
On the network side, the DS-2CD2T46G2H-2I supports H.265+/H.265 and H.264+/H.264 compression, which can significantly reduce bandwidth and storage use compared with older codecs. Multiple streams allow simultaneous recording, live monitoring and mobile viewing at different resolutions. On-board microSD support (up to 512 GB) offers local buffering for short-term outages or as a simple recording option where a network recorder is not deployed.
Physical and power specifications make installation straightforward: PoE simplifies cabling by carrying power and data on a single Ethernet run (802.3af), or installers can use 12 VDC where PoE is not available. IP67 ingress protection and an operating range from −30 °C to +60 °C make it suitable for most outdoor climates.
Use cases and ideal scenarios
The DS-2CD2T46G2H-2I is well suited to a broad set of outdoor surveillance applications where reliable detection and good low-light colour are priorities. Typical scenarios include:
- Retail entrances and storefronts:The wide field of view and 4 MP resolution capture customer movement and facial detail at entrance points while AcuSense reduces nuisance alarms from non-threatening motion.
- Car parks and driveways:Smart IR and DarkFighter provide valuable night-time coverage, helping identify vehicles and occupants at approach lanes and parking aisles.
- Perimeter and fence-line monitoring:The bullet form factor and IR range are effective for medium-range perimeter coverage. AcuSense classification helps prioritise human intrusions over animal triggers.
- Small-to-medium commercial sites:Offices, light industrial sites and small campuses can deploy a handful of these cameras for robust 24/7 monitoring and reduced operational overhead.
- Residential properties:Homeowners seeking a professional-grade outdoor camera with powerful low-light performance will find it suitable for driveways, yard coverage and property entrances.
For best results, position the camera to take advantage of its wide-angle lens without placing subjects too close to the lens where perspective distortion increases. Use PoE where possible to simplify wiring, and configure AcuSense sensitivity and privacy masks during commissioning to minimise false alerts. Always follow local electrical and mounting regulations and consult Hikvision documentation for exact installation steps.
Comparisons with similar products
Within the same price bracket and product tier, customers often consider alternatives from Hikvision's own lineup as well as offerings from competitors. Compared to standard 4 MP outdoor cameras lacking DarkFighter, the DS-2CD2T46G2H-2I delivers markedly better colour at low light, reducing reliance on IR-only footage and improving identification at night. Against 2 MP cameras, the higher 4 MP resolution provides more usable detail for identification tasks, though at the cost of increased bandwidth and storage without H.265+ savings.
Versus dome-style cameras, the bullet form offers easier directional aiming and often longer IR range, while domes provide a more discreet appearance and vandal resistance in high-risk locations. Compared with comparable models from other brands, strengths of this Hikvision model include integrated AcuSense analytics, efficient H.265+ compression and wide low-light capability. Buyers should weigh these features against the support ecosystem, firmware policies and local distributor availability when choosing between brands.
Price-wise, the suggested retail of USD 159.99 (cost price example USD 117.16) positions the DS-2CD2T46G2H-2I as a competitively equipped camera for its feature set. For projects where analytics and low-light colour are critical, the value proposition tends to be favourable against lower-cost basic cameras and many similarly priced competitors.
While no formal testimonials are embedded in this product brief, aggregated user feedback for Hikvision AcuSense/DarkFighter cameras commonly highlights the following themes:
- "Reliable low-light colour" — installers and end users praise the ability to retain colour in very dim conditions, making identification easier after dark.
- "Fewer false alarms" — AcuSense classification reduces time wasted on irrelevant alerts from environmental motion.
- "Good image quality for the price" — many installers note the camera delivers features and image clarity expected in higher-priced models.
- "Simple PoE installations" — integrators appreciate the convenience of PoE and on-board SD for backup recording.
As with any surveillance equipment, individual experiences vary by deployment conditions, network setup and configuration. Prospective buyers should review product datasheets, firmware release notes and reseller feedback for the most current user experiences.
Warranty terms can vary by region and reseller. The product listing used for this article indicates no included warranty in the provided data, so confirm warranty coverage and support options with your supplier or Hikvision representative before purchase.
Conclusion: Why choose the DS-2CD2T46G2H-2I?
In summary, the Hikvision DS-2CD2T46G2H-2I is a well-rounded outdoor bullet camera that blends strong low-light performance (Powered-by-DarkFighter), intelligent AcuSense analytics and practical installation features such as PoE and on-board storage. Its 4 MP resolution and wide 2.8 mm lens make it versatile for entrances, parking areas and perimeter coverage, while True WDR and Smart IR help maintain image quality in mixed lighting and at night. For projects that need reliable detection with fewer false alarms and good night-time colour, this camera represents a solid choice at a competitive price point. As always, match the camera's capabilities to your specific site requirements and verify warranty and support with your chosen vendor before finalising a purchase.
