Dahua IPC-HFW2649TP-ZAS-IL-27135 – 6MP WizSense Motorised Varifocal Smart Dual Light Bullet Camera
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua IPC-HFW2649TP-ZAS-IL-27135 6MP Smart Dual Light WizSense Motorised Bullet IP Camera
The Dahua IPC-HFW2649TP-ZAS-IL-27135 is a high-performance 6MP network bullet camera designed to deliver exceptional image quality and intelligent perimeter protection for commercial, industrial, and residential security applications. Featuring a 2.7–13.5mm motorised varifocal lens, this camera allows flexible adjustment of the field of view, enabling precise coverage of both wide areas and critical entry points.
Powered by Dahua's WizSense AI technology, the camera provides advanced human and vehicle classification, reducing false alarms caused by animals, weather, and other non-relevant movements. Intelligent functions such as tripwire detection and intrusion protection ensure accurate event detection and proactive security monitoring.
Its Smart Dual Light technology combines infrared and warm white LED illumination with a range of up to 60 metres, automatically switching to full-colour recording when a target is detected while minimising unnecessary light pollution. The integrated Starlight imaging capability delivers clear, detailed colour images even in low-light environments.
The camera supports H.265 video compression for efficient bandwidth and storage usage while maintaining outstanding image quality. Additional features include built-in microphone support, audio and alarm interfaces, onboard MicroSD storage up to 256GB, Wide Dynamic Range (120dB), 3D Noise Reduction, and IP67 weatherproof protection for reliable outdoor operation.
Key Features:
- 6MP (3288 × 1850) high-resolution image sensor
- 2.7–13.5mm motorised varifocal lens
- WizSense AI human and vehicle classification
- Smart Dual Light with IR and warm white LEDs up to 60m
- Intelligent perimeter protection (tripwire and intrusion detection)
- Starlight low-light imaging technology
- H.265/H.264 video compression
- Built-in microphone and audio support
- MicroSD card support up to 256GB
- 120dB Wide Dynamic Range (WDR)
- IP67 weatherproof housing
- PoE and 12V DC power options
Ideal for warehouses, retail premises, offices, car parks, schools, and residential properties requiring intelligent, high-resolution surveillance with enhanced night-time performance and accurate AI-based detection.
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