Hikvision Smart IP · 8MP 4K · Smart Dual-Light · DarkFighter-S · HEOP AI
Hikvision 8MP 4K Smart Dual-Light Dome
Hikvision DS-2CD3786G2HT-LIZSUY — 8MP 4K Smart Dual-Light Motorised Varifocal Dome with DarkFighter-S, HEOP 1.5 TOPS AI & 40 m IR/White Light (IP67/IK10, NEMA 4X)
The Hikvision DS-2CD3786G2HT-LIZSUY sits in Hikvision's Smart IP / Ultra Series commercial dome line — a step above the Pro Series EasyIP cameras and one of the most capable 8 MP domes you can install on a standard PoE+ run. A 1/1.8" progressive-scan CMOS sensor delivers 4K UHD (3840 × 2160) imaging; a motorised 2.7-13.5 mm F1.2 varifocal lens covers everything from a 112° wide view down to a 41° telephoto frame without ever needing a service trip; DarkFighter-S drives the colour floor to 0.0028 lux; and the Smart Dual-Light (also marketed as Smart Hybrid Light) illuminator delivers up to 40 m of IR or white-light supplementation with three blend modes — covert IR, 24/7 colour with white light, or smart auto-blend that switches by scene. The camera runs Hikvision's HEOP open platform with 1.5 TOPS of on-camera AI compute, supports third-party AI applications alongside Hikvision's native AcuSense deep-learning analytics, and is housed in an IP67 + IK10 vandal-rated chassis with NEMA 4X anti-corrosion (the -Y suffix) for coastal Australian sites within ~2 km of the shoreline. Australian stock, 3-year Australian warranty, runs on standard PoE 802.3at — no special supply needed.
Resolution
8 MP · 3840 × 2160 · 4K UHD
Motorised Lens
2.7-13.5 mm · F1.2 · 5× zoom
Smart Dual-Light
IR + White · 3 modes · 40 m
AI Compute
HEOP · 1.5 TOPS · AcuSense
Low Light
DarkFighter-S · 0.0028 lux
Protection
IP67 · IK10 · NEMA 4X (-Y)
3-Year AU Warranty
Fast AU Shipping
Australian Tech Support
Why the Smart IP / Ultra Series 3 Tier Is the Right Step Up
Three things separate the Smart IP / Ultra Series 3 from the more affordable Pro Series EasyIP cameras: a motorised varifocal lens that lets you set framing once and forget it (no return trip to adjust a fixed 2.8 mm), HEOP open platform AI for running custom analytics directly on the camera, and Smart Dual-Light at 40 m (vs the 30 m fixed-lens Pro Series). If your site is bigger than a residential front door, has a longer driveway, or you want one camera that can re-frame across multiple shifts, the 3786G2HT pays for itself in install simplicity alone.
Motorised 2.7-13.5 mm Varifocal Lens
Remote zoom + remote focus from 112° ultra-wide down to 41° tele — adjusted from the NVR, the web UI or Hik-Connect. No service-trip to adjust a fixed lens after the install. Mount it once, set the framing remotely, adjust later if the site layout changes.
Smart Dual-Light — 40 m IR or White Light
Hikvision's Smart Dual-Light (officially also called Smart Hybrid Light) drives IR + white LEDs to up to 40 m supplementary range — significantly more than the 30 m Pro Series equivalent. Three modes: IR-only (covert, B/W image), white-only (24/7 colour, deterrent value), or smart blend (IR fill + white-light burst on AcuSense events).
DarkFighter-S — 0.0028 lux Low-Light
The DarkFighter-S low-light pipeline takes the F1.2 motorised lens and pairs it with Hikvision's newer ISP — delivering 0.0028 lux colour imaging in any ambient-lit scene before the Smart Dual-Light even kicks in. Result: clean, low-noise colour at dusk, dawn and overcast sites without flooding the scene with white light.
HEOP 1.5 TOPS Open Platform
The camera ships with 1.5 TOPS of on-board AI compute, 40 MB system memory, 350 MB smart RAM and a 2 GB eMMC partition for the HEOP platform — letting Hikvision's technology partners deploy custom analytics (queue counting, dwell time, retail-conversion tracking, industrial safety) on-camera alongside the native AcuSense human + vehicle classification.
See Hikvision Smart Dual-Light / Smart Hybrid Light in Action
Hikvision's official demonstration of the Smart Dual-Light / Smart Hybrid Light system shows the three illumination modes on the same scene — IR-only at night, white-light-only for 24/7 colour, and the smart auto-blend that triggers a white-light burst when AcuSense detects a human or vehicle. The same illuminator architecture (scaled to 40 m here) powers this DS-2CD3786G2HT-LIZSUY dome.
Smart Dual-Light — The Three Modes Explained
Smart Dual-Light is the single most useful feature on this camera once it's installed. The illuminator combines white LEDs and 850 nm IR LEDs in one housing — both rated to up to 40 m range at the relevant zoom level. The camera lets you choose how the two light sources work together, per camera, per time-of-day schedule, or per AcuSense event.
Smart IR Mode — Covert Night Recording
IR LEDs only at 850 nm, no visible light. The image goes black-and-white at night, invisible to the human eye. Best for back-of-house car parks, side-perimeter coverage and any install where you don't want a bright white floodlight running 24/7. Range up to 40 m at the wider zoom settings.
Smart White-Light Mode — 24/7 Colour
White LEDs always on at night. Full natural-colour image around the clock, which doubles as a passive deterrent — lit-up commercial frontages and car parks are statistically less likely to be targeted. Useful for retail shopfronts, hospitality entries, council-zone parking and student-housing access points.
Smart Blend Mode — Best of Both
IR fills the background continuously for general motion sensing. When AcuSense classifies a human or vehicle inside your defined zone, the white LEDs briefly burst to capture a colour evidence frame before returning to IR. Lowest visible disturbance to neighbours, best evidence-quality colour shots on actual events.
AcuSense + HEOP — On-Camera AI That Works for Your Site
The 3786G2HT runs two AI workloads at once: Hikvision's native AcuSense deep-learning engine for human + vehicle classification and perimeter protection, and the HEOP open platform for third-party AI applications running on the camera's 1.5 TOPS compute budget. For most sites the native AcuSense is enough; HEOP is the headroom for when you need something specific.
AcuSense Perimeter Protection
Line crossing, intrusion, region entrance and region exiting detection — each filtered by target classification (human or vehicle). Filters out the ~90 % of motion alerts caused by foliage, rain, possums and headlight glare on typical Australian outdoor sites.
Face Capture & Multi-Target Detection
Simultaneous detection of face, human body and vehicle classes with rich feature extraction. Useful at entrances, gate cams, school drop-off zones and any location where post-incident review benefits from indexable AI metadata.
HEOP Third-Party Applications
1.5 TOPS of dedicated AI compute (40 MB system + 350 MB smart RAM + 2 GB eMMC) for Hikvision technology partners' applications — queue analytics, dwell-time tracking, retail conversion, industrial safety, traffic counting. Run them directly on the camera, no central server required.
Hik-Connect + iVMS-4200 + HikCentral Pro
Native support for the full Hikvision client stack — Hik-Connect (mobile), iVMS-4200 (desktop Windows / Mac client), HikCentral Professional (enterprise VMS). ONVIF Profile S / G / T plus Hikvision ISAPI for third-party integration.
Technical Specifications
DS-2CD3786G2HT-LIZSUY · Full Specifications
SKU
DS-2CD3786G2HT-LIZSUY (AU-stocked default — NEMA 4X anti-corrosion -Y suffix)
Camera Type
Hikvision Smart IP / Ultra Series 3 · 8 MP / 4K UHD Smart Dual-Light Motorised Varifocal Dome
Image Sensor
1/1.8" Progressive Scan CMOS · DarkFighter-S low-light pipeline
Max Resolution
3840 × 2160 (8 MP · 4K UHD)
Min. Illumination
Colour 0.0028 lux @ F1.2 (AGC ON) · 0 lux with supplement light
Shutter Speed
1 s to 1/100,000 s · Slow Shutter
Lens
Motorised varifocal · 2.7-13.5 mm · F1.2 max · 5× optical zoom range · auto / semi-auto / manual focus
Field of View
Horizontal 112.3° → 41.2° · Vertical 58.1° → 23.1° · Diagonal 137.4° → 47.3°
Lens Control
Remote zoom + remote focus via NVR, web UI, Hik-Connect or HikCentral Pro
Day & Night
ICR (IR cut filter, mechanical)
Wide Dynamic Range
130 dB Scene-Adaptive WDR
Image Enhancement
BLC · HLC · 3D DNR · distortion correction · digital defog · EIS
SNR
≥ 52 dB
Supplement Light
Smart Dual-Light (Smart Hybrid Light) — white + 850 nm IR · up to 40 m · 3 modes (IR / White / Smart Blend)
Angle Adjustment
Pan 0°-355° · Tilt 0°-75° · Rotation 0°-355° (3-axis dome)
Frame Rate (Main)
50 Hz: 25 fps @ 8 MP · 60 Hz: 30 fps @ 8 MP (4K UHD)
Streams
3 simultaneous (main / sub / third)
Video Compression
H.265+ · H.265 · H.264+ · H.264 · MJPEG (sub / third)
Video Bit Rate
32 Kbps – 16 Mbps · CBR / VBR · SVC (H.264 + H.265) · ROI
AI Compute
HEOP open platform · 1.5 TOPS · 40 MB system memory · 350 MB smart RAM · 2 GB eMMC
AI — AcuSense
Human + vehicle classification · perimeter protection (line crossing / intrusion / region entry & exit) · face capture · multi-target detection
Basic Events
Motion (human + vehicle trigger filter) · video tampering · scene change · exception
Linkage
FTP / NAS / microSD upload · centre notify · email · trigger recording · capture
Audio
Built-in microphone (-U suffix) · 1 line-in · 1 line-out · G.711 / G.722.1 / G.726 / MP2L2 / PCM / AAC-LC
Alarm I/O
1 input · 1 output (max 24 VDC/VAC, 1 A)
Ethernet
1 × RJ-45 10/100 Mbps self-adaptive
On-Board Storage
microSD / SDHC / SDXC up to 512 GB · NAS (NFS / SMB-CIFS) · ANR auto network replenishment
API & Protocols
ONVIF (Profile S / G / T) · ISAPI · SDK · ISUP · HEOP SDK
Cyber Security
TLS 1.2 · HTTPS · 802.1X · IP filter · watermark · MAC host authentication · audit log · password protection
Client Software
iVMS-4200 · Hik-Connect · HikCentral Pro
Power Source
12 VDC ±25% (1.05 A, max 12.6 W) OR PoE 802.3at Class 4 (max 15 W) — runs on any Hikvision NVR PoE+ port
Dimensions / Weight
Ø ~ 130 mm housing · ≈ 820 g
Operating Temperature
−30 °C to +60 °C · ≤95 % humidity (non-condensing)
Weatherproof Rating
IP67 (IEC 60529-2013)
Vandal Resistance
IK10 (IEC 62262:2002)
Anti-Corrosion
NEMA 4X (NEMA 250-2018) — Y variant · moderate Hikvision protection tier (coastal AU within ~2 km of shoreline)
Approvals
CE-EMC · CE-LVD · UL · RCM (AS/NZS CISPR 32:2015) · IC · KC · CB · RoHS
Warranty
3-Year Australian Warranty (back-to-base)
DS-2CD3786G2HT-LIZSUY vs DS-2CD2387G3-LIS2UY/SL — Smart IP Series vs Pro Series
The closest sibling at the same 8 MP / 4K resolution is the Pro Series G3 ColorVu Live-Guard turret (DS-2CD2387G3-LIS2UY/SL). The 3786G2HT is the step up: motorised varifocal lens, longer-range Smart Dual-Light, HEOP open platform AI, and the dome form factor for ceiling installs. The G3 turret wins on price and on the /SL Live-Guard active-deterrence package (white strobe + 110 dB speaker + dual mic + 2-way audio).
DS-2CD3786G2HT-LIZSUY (Smart IP / Ultra) vs DS-2CD2387G3-LIS2UY/SL (Pro Series G3)
Feature
DS-2CD3786G2HT-LIZSUY (this — Smart IP)
DS-2CD2387G3-LIS2UY/SL (Pro Series G3)
Series Position
Smart IP / Ultra Series 3 (higher tier)
Pro Series / EasyIP G3
Form Factor
Outdoor Dome (3-axis)
Outdoor Turret (3-axis)
Resolution
8 MP · 3840 × 2160 (4K UHD)
8 MP · 3840 × 2160 (4K UHD)
Image Sensor
1/1.8" CMOS · DarkFighter-S
1/1.8" CMOS · ColorVu 3.0 · HikAI-ISP
Min. Illumination
0.0028 lux @ F1.2 colour
0.0005 lux @ F1.0 colour (lower floor)
Lens
Motorised 2.7-13.5 mm · 5× zoom · F1.2
Fixed 2.8 mm or 4 mm · F1.0
Supplement Light
Smart Dual-Light · up to 40 m · 3 modes
Smart Hybrid Light · up to 30 m · 3 modes
WDR
130 dB Scene-Adaptive
130 dB Scene-Adaptive
AI Engine
AcuSense + HEOP 1.5 TOPS open platform
AcuSense (no HEOP)
Active Deterrence
—
/SL Live-Guard: white strobe + 110 dB speaker + 2-way audio
Audio
Built-in microphone
Built-in dual mic + built-in 2 W speaker
Protection
IP67 · IK10 · NEMA 4X (-Y)
IP67 · NEMA 4X (-Y)
Vandal Rating
IK10
Not rated
Power
PoE 802.3at Class 4 · 12 VDC · ~15 W
PoE 802.3at Class 4 · 12 VDC · ~17 W
Warranty
3-Year Australian Warranty
3-Year Australian Warranty
Best For
Commercial sites needing motorised remote framing, 40 m supplementary light reach, HEOP open-platform AI, IK10 vandal-rated dome housing — schools, retail centres, hospitality entrances, council CBD, port aprons, larger commercial frontages.
Residential / small-business sites where the fixed-lens form factor is fine and the /SL Live-Guard active-deterrence package (white strobe + 110 dB speaker + 2-way audio) adds value at the front door.
For the Pro Series G3 sibling: DS-2CD2387G3-LIS2UY/SL (8 MP 4K ColorVu Live-Guard Turret) →
Recording NVRs — Pair with an Affordable M-Series PoE NVR
The DS-2CD3786G2HT-LIZSUY runs on standard PoE 802.3at and plugs directly into the built-in PoE+ ports of any Hikvision NVR. For commercial installs that want to keep the entry cost in check, the Hikvision M-Series NVRs are the right pairing — 4K HDMI output, H.265+ compression, PoE built-in, plug-and-play. Step up to the AcuSeek or DeepinMind AI NVRs if you'll be running HEOP applications across multiple cameras and want central metadata search.
DS-7604NI-M1/4P — 4CH · 4 PoE · Budget Pick
Four-channel M-Series NVR with 4 built-in PoE ports, 4K HDMI output, single HDD bay. Right size for a small commercial install with this dome as the centrepiece plus three perimeter cameras. View DS-7604NI-M1/4P →
DS-7608NI-M2/8P — 8CH · 8 PoE · 2 HDD Bay
Eight-channel M-Series NVR with 8 built-in PoE ports, 4K HDMI output, two HDD bays (up to 20 TB). Sweet spot for shopfront, restaurant, school front-of-house and small council site installs. View DS-7608NI-M2/8P →
DS-7616NI-M2/16P — 16CH · 16 PoE · 2 HDD Bay
Sixteen channels at full PoE, 160 Mbps M-Series engine for stutter-free 4K playback. Standard pairing for larger commercial sites, body-corporate, multi-shop strata and small-campus installs running multiple Smart IP domes. View DS-7616NI-M2/16P →
Running HEOP at Scale? AcuSeek / DeepinMind NVRs
If you're running HEOP applications across multiple cameras and want natural-language search across the recording fleet, step up to a Hikvision AcuSeek (VPro) or DeepinMind AI NVR. Indexes face, human and vehicle metadata. Browse AcuSeek & DeepinMind NVRs →
Compatible Mounts & Accessories
DS-1273ZJ-DM45 — Wall Mount
Wall-mount bracket sized for the Ultra Series dome — facade, column or building-wall installs looking outward across a perimeter or approach.
DS-1271ZJ-DM45 — Pendant / Ceiling Mount
Pendant mount for hanging from horizontal surfaces — undercover gantry, ceiling, soffit, carport. Common for retail and hospitality ceiling-down installs.
DS-1275ZJ-SUS / DS-1276ZJ-SUS — Pole & Corner
Stainless-steel-banded pole mount and corner-of-building bracket for fence posts, light poles, gate columns and corner installs.
microSD Card for Local Storage
Supports microSD / SDHC / SDXC up to 512 GB with ANR (Auto Network Replenishment). Camera keeps recording locally during NVR outages, back-fills automatically when network returns.
Frequently Asked Questions
What does "Smart IP / Ultra Series" mean — is this above or below the Pro Series?The Smart IP / Ultra Series (DS-2CD37xx prefix) sits one tier above the Pro Series EasyIP (DS-2CD23xx prefix) in Hikvision's line-up. It adds motorised varifocal lenses, longer-range supplement lighting, the HEOP open platform, and IK10 vandal rating. It sits below the DeepinView Series (iDS-2CD7xxx prefix) which adds enterprise face recognition and ANPR.
Is "Smart Dual-Light" the same as "Smart Hybrid Light"?Yes — they're the same illumination system, Hikvision uses different marketing names for different product families. Both refer to the integrated white + IR LED array with three blend modes (IR-only / white-only / smart-blend). The 3786G2HT delivers it at up to 40 m range; the Pro Series G3 equivalent delivers it at 30 m.
What is HEOP and do I actually need it?HEOP — Hikvision Embedded Open Platform — lets Hikvision technology partners deploy custom AI applications directly on the camera. Most buyers don't deploy a HEOP app initially, but the headroom matters if you're planning queue analytics, dwell-time measurement, retail conversion tracking or industrial safety monitoring with a specific vendor app. Future-proofing.
What does each letter in "LIZSUY" mean?L = Smart Dual-Light illuminator. I = built-in IR. Z = motorised varifocal Zoom lens. S = audio & alarm I/O. U = built-in microphone. Y = NEMA 4X anti-corrosion housing. We stock the LIZSUY variant as our Australian default — the right configuration for the vast majority of AU commercial outdoor installs.
Does the motorised lens add maintenance overhead?No. Motorised zoom + focus is electrically driven and rated for the camera's full service life. The advantage is enormous on install: you mount once, set the zoom and focus from the NVR or web UI, and you can re-adjust later if site layout changes — without a service trip up a ladder.
Will it run on a standard Hikvision NVR PoE port?Yes — PoE 802.3at Class 4 (max 15 W), standard PoE+ delivered by every Hikvision PoE NVR built-in port. No special injector or Hi-PoE switch needed. Single Cat 6 cable from NVR to camera.
Can I install this within 2 km of the coast?Yes — the -Y suffix denotes Hikvision's NEMA 4X moderate anti-corrosion housing, designed for coastal Australian sites within ~2 km of the shoreline and for areas exposed to acid rain. Right rating for Sydney Harbour, Brisbane River, Gold Coast, Perth waterfront, Wollongong, Newcastle, Hobart and similar sites.
How does AcuSense filter out false alarms?AcuSense runs deep-learning classification on the camera itself, identifying whether motion is a human, a vehicle or "other" (animals, foliage, rain, headlight glare). Only human or vehicle detections trigger alerts and recording. Typical sites see ~90 % fewer false alerts than with traditional motion-only cameras.
Downloads & Resources
DS-2CD3786G2HT-LIZSUY Datasheet
Hikvision Dome Quick Start Guide
Hikvision Dome User Manual
Order the Hikvision DS-2CD3786G2HT-LIZSUY from CCTV Guru
CCTV Guru is an authorised Australian reseller of the Hikvision Smart IP / Ultra Series 3 commercial dome range. The DS-2CD3786G2HT-LIZSUY is the right camera for Australian commercial sites that need motorised varifocal framing, 40 m Smart Dual-Light, HEOP open-platform AI compute, IK10 vandal resistance and NEMA 4X anti-corrosion — schools, retail centres, hospitality entrances, council CBD, port aprons, body-corporate sites and large commercial frontages. Australian stock, 3-year Australian warranty, fast Australia-wide dispatch, multi-camera project pricing, and pre-sales advice from our Sydney team. Designing a complete commercial system? Request a free quote or contact our Australian team for camera-and-NVR sizing tailored to your project.
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