Hikvision DS-2CD2T47G3-LIY(4mm) 4MP Smart Hybrid Light ColorVu Bullet

Hikvision DS-2CD2T47G3-LIY (4 mm) — 4 MP Smart Hybrid Light ColorVu bullet

This is the 4 mm version of Hikvision's 4 MP ColorVu bullet. A 1/1.8" sensor behind an F1.0 lens reaching 0.0001 lux — ten times more sensitive than the AcuSense models — paired with Smart Hybrid Light, both infrared and white light up to 60 m, so the camera records in full colour at night rather than switching to black and white.

4 mm or 2.8 mm — which to order

Same camera, different lens. At 4 mm the field of view is 95.2° horizontal and the DORI figures are detect 75 m, observe 30 m, recognise 15 m, identify 7 m. At 2.8 mm the view widens to 111.1° but the figures fall to 61 m detect and 6 m identify.

Choose 4 mm where the camera looks along a length — a driveway, a service road, a car park aisle — and you want colour detail further out. Choose 2.8 mm for breadth close in. The 4 mm also holds focus from 3.1 m rather than 2.5 m, so it is the weaker option mounted close to its subject.

One thing worth noting on this variant: the supplement light reaches 60 m against a 75 m detection range. Slightly short, but far better matched than most of this catalogue — the AcuSense fixed models pair 30 m of IR with optics reaching 89 m.

How Hybrid Light actually works

Three modes, and the choice matters more than most of the spec sheet:

• Infrared — covert, monochrome, no visible light.
• White light — full colour, visibly lit, so it doubles as a deterrent.
• Smart Hybrid — runs on infrared until an event is detected, then switches the white light on and captures in colour.

That third mode is the reason to buy this over a plain IR camera. It avoids both usual complaints: a permanently lit camera irritating neighbours, or a monochrome clip that identifies nothing.

130 dB WDR and image stabilisation

Two specifications above the AcuSense range: 130 dB WDR rather than 120, and EIS electronic image stabilisation, which no fixed AcuSense model has. EIS earns its keep on a 287 mm bullet fixed to a pole, a fence post or lightweight cladding, where wind movement otherwise blurs the frame — and a 4 mm lens magnifies that movement more than a 2.8 mm does.

What it does not have

No audio at all. No microphone, no speaker, no audio or alarm terminal block — Ethernet, microSD and reset key are the only interfaces. The LIY designation means light and imaging only. For audio or an on-camera siren, look at the LIS2UY/SL models in the same family.

Imaging

• 1/1.8" progressive scan CMOS, 2688 × 1520 at 25 fps (50 Hz)
• F1.0 aperture, 0.0001 lux in colour, 0 lux with supplement light
• 130 dB WDR, SNR ≥ 52 dB
• Smart Hybrid Light — white light and IR, up to 60 m; IR at 850 nm
• 4 mm fixed lens on an M16 mount, depth of field from 3.1 m
• EIS, distortion correction, Defog, BLC, HLC, 3D DNR; 4 programmable polygon privacy masks

Recording, storage and network

• H.265+/H.265/H.264+/H.264, 32 Kbps to 8 Mbps
• microSD/SDHC/SDXC to 512 GB, plus NAS (NFS, SMB/CIFS) and ANR
• ONVIF Profile S/T/G, ISAPI, SDK and ISUP; iVMS-4200, Hik-Connect and HikCentral
• The Ethernet port is 10/100, not gigabit — ample at an 8 Mbps ceiling
• AcuSense human and vehicle classification plus face capture, so foliage and weather do not trigger alerts

Power, build and environment

• PoE IEEE 802.3af Class 3, max. 12.5 W, or 12 VDC 0.83 A max. 10 W
• Metal front cover, body and bracket; IP67 and NEMA 4X anti-corrosion
• −30 °C to 60 °C, humidity 95% or less non-condensing
• 286.7 mm × 93.3 mm × 91.2 mm, approx. 1,200 g

What you'll need with it

• An 802.3af (or better) PoE switch or NVR port, or a 12 VDC supply
• An AcuSense-capable Hikvision NVR to carry human/vehicle classification through to smart search
• A microSD card for edge recording or ANR backfill — not supplied
• A pole or corner bracket if it is not mounting flat to a wall
• A view of where the white light will fall — consider neighbours and highways before choosing permanent white-light mode

Frequently asked questions

Is the 4 mm better than the 2.8 mm?

Not better, different. It sees further with more detail over a narrower field. For close, wide coverage the 2.8 mm is the right choice, and the lens is fixed so it must be decided before ordering.

Does it really record in colour at night?

Yes, when the white light is active. In infrared mode it records in black and white. Smart Hybrid mode switches automatically on an event.

Does it have a microphone?

No — this model has no audio hardware at all.

Will the white light annoy neighbours?

It can if left on permanently. Smart Hybrid mode exists to avoid that.

Trade pricing

Zenith Security Co is an authorised Hikvision partner. Prices shown are for trade account holders — contact us for account terms and stock availability.