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Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet)
Bullet Camera with 2.1MP (1920×1080) resolution, 98° field of view, and 50m IR night vision range.
SPECIFICATIONS · HOLOWITS HWT-D2120-10-LI-SV (2MP VARIFOCAL BULLET)
Specifications
About the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet)
The Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) is a rugged outdoor-grade bullet form factor designed to withstand exposure to weather, vandalism, and direct sunlight. 1080p Full HD remains the most widely deployed CCTV resolution in 2026 — it balances bandwidth, storage, and detail well, supporting facial identification up to roughly 12 meters in good light. With long-range IR you can rely on the camera as the only night-vision source over a wide area, eliminating the cost and visual clutter of dedicated IR floods. A wide 80–120° angle covers a large room or open area from a single mounting position, making it ideal for retail floors, conference rooms, and small parking lots.
Best use cases for this camera
Outdoor perimeter & fenceline
With 50m IR reach and 2.1MP (1920×1080) resolution, this camera covers fences, yards, and approach roads in complete darkness. Mount on poles or eaves at 4–6 m height angled slightly downward.
Entrance, lobby & vestibule
The 98° field of view captures the entire entrance and surrounding waiting area from a single ceiling mount. Useful for capturing visitors as they enter and leave.
Strengths
- •50m IR range eliminates the need for external night-time illuminators
- •98° wide field of view reduces the number of cameras needed per area
Considerations
- •No notable limitations for the intended class of installations
Coverage at Different Distances
| Distance | Coverage Width | Coverage Area | Use Case |
|---|---|---|---|
| 5m | 11.5m | 58 m² | Entrance, corridor |
| 10m | 23.0m | 230 m² | Room, retail aisle |
| 15m | 34.5m | 518 m² | Warehouse, parking row |
| 20m | 46.0m | 920 m² | Parking row, courtyard |
| 30m | 69.0m | 2071 m² | Parking lot, yard |
| 50m | 115.0m | 5752 m² | Perimeter, large area |
Field of View Visualization
Night Vision Performance
Daytime
Full 2.1MP (1920×1080) resolution at 98° field of view. Effective identification range up to 35m in good lighting conditions.
Nighttime (IR)
Built-in IR LEDs illuminate up to 50m in complete darkness. Switches to B/W mode for clear night footage.
Installation tips for the Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet)
Avoid mounting under direct ceiling lights or behind glass — both reflect IR back into the lens and create severe glare in the image.
Position so the most important subject (entrance, cash register, gate) is in the center third of the frame — peripheral pixel density drops with wide angles.
Coverage geometry & DORI distances
At a 5-metre standoff the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) covers about 11.5 m of scene width; at 10 m that grows to 23.0 m, and at 20 m to 46.0 m. Translating those numbers through EN 62676-4 pixel-density thresholds, the camera can detect a person up to 34 m, observe up to 13 m, recognise up to 7 m, and produce identification-grade detail (the ≥250 px/m bar used by Polish and EU courts as evidentiary) up to 3 m. Effective range above the identify threshold relies on supplementary lighting or a longer-focal-length optic — the geometry above assumes the 2.8-12mm lens declared by the manufacturer.
Power & cabling
The Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) draws an estimated 12.0 W under typical load (with the IR illuminator engaged where applicable), placing it in the 802.3af (Class 3, ≤15.4 W) budget. A single switch port supplies enough power without an injector. Cabling: stick to Cat6 STP for runs up to 100 m end-to-end — beyond that, add an inline PoE extender or move to fibre with a media converter at the camera end. On outdoor runs, route through ø25 PVC or PE conduit to keep the cable shielded from UV and rodents.
Privacy & legal (GDPR / RODO)
Any camera operating in a publicly accessible area falls under GDPR (RODO in Poland) — Art. 13 obliges the data controller to post an information sign at every entry point with controller name, DPO contact, lawful basis (typically Art. 6(1)(f) legitimate interest for property protection), purpose, and retention period. Even a narrowly-aimed bullet camera can incidentally record passers-by, so the Art. 13 sign at the entry point applies regardless of how tightly the lens is framed.
Installer time & cost (rough estimate)
A typical EU installer quotes 3–4 h of labour per bullet camera of this class (approximately €135–€185 excluding hardware), broken down as bracket mounting, cable termination at both ends, on-site commissioning, and a brief operator handover. Allow extra time for high mounts (>4 m), exterior installations requiring scaffolding, or sites where cable routing demands wall penetrations or conduit work.
Indicative EU 2024-2025 pricing — actual quotes vary by region, mounting height, and site conditions. Excludes hardware, transport, permits, and VAT.
Frequently asked questions
Is the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) suitable for outdoor installation?
Yes for the IP66/IP67-rated variant of this model. Bullet and dome bodies in the Holowits range survive direct rain, snow and UV; check the IP / IK rating against your environment (IP66 for rain/dust, IK10 for vandal-prone locations).
What PoE class powers the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet)?
The camera draws roughly 12.0 W in steady-state operation, requiring a 802.3af (Class 3, ≤15.4 W) switch port. A single Cat6 STP cable carries both data and power up to 100 m — beyond that, add an inline extender or convert to fibre near the camera.
How much storage does the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) consume per day?
At 2.1MP (1920×1080) resolution, 15 fps H.265 continuous recording, the Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) produces approximately 8 GB per day — about 240 GB per month. Motion-only or event-triggered recording typically cuts that by 40–70 % depending on scene activity. Plan NVR HDD capacity for the longest retention period required by your privacy policy or insurance contract.
Up to what distance can the Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) identify a person?
Per EN 62676-4:2025 pixel-density thresholds, this camera identifies (≥ 250 px/m on the target) up to about 3 m, recognises a person up to 7 m, observes general activity up to 13 m, and detects motion up to 34 m. Identification distance assumes daylight or full IR illumination on the target — at the limits of the IR cone the effective identify distance shrinks roughly 30 %.
What network bandwidth does Holowits Holowits HWT-D2120-10-LI-SV (2MP varifocal bullet) use?
Typical ingest is 3 Mbps for the main stream (H.265, medium scene complexity, 15 fps) plus ~0.5 Mbps for a low-resolution sub-stream used by mobile clients. For a 16-camera installation of this class, plan a 50–100 Mbps NVR uplink and a dedicated VLAN for camera traffic.
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