SKU: 9792952281

DAHUA HAC-B4A21-VF 2MP HDCVI IR Bullet Camera

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Description

DAHUA HAC-B4A21-VF 2MP HDCVI IR Bullet CameraDAHUA HAC B4A21 VF 2MP HDCVI IR Bullet Camera > Max. 30 fps@1080p > CVI CVBS AHD TVI switchable > 2. 7 12 mm vari focal lens > Max. IR length 40 m, Smart IR > IP67,12 VDC Product Data Camera Pixel 2 MP Image Sensor 2MP CMOS Max. Resolution 1920 (H) 1080 (V) Scanning System Progressive Electronic Shutter Speed PAL: 1 25 s1 100,000 s NTSC: 1 30 s1 100,000 s Min. Illumination 0. 04 lux@F1. 7 (Color, 30 IRE) 0. 004 lux@F1. 7 (B W, 30 IRE) 0 lux

DAHUA HAC-B4A21-VF 2MP HDCVI IR Bullet Camera

> Max. 30 fps@1080p

> CVI/CVBS/AHD/TVI switchable

> 2.7-12 mm vari-focal lens

> Max. IR length 40 m, Smart IR

> IP67,12 VDC

Product Data

Camera

Pixel

2 MP

Image Sensor

2MP CMOS

Max. Resolution

1920 (H) × 1080 (V)

Scanning System

Progressive

Electronic Shutter Speed

PAL: 1/25 s–1/100,000 s
NTSC: 1/30 s–1/100,000 s

Min. Illumination

0.04 [email protected] (Color, 30 IRE)
0.004 [email protected] (B/W, 30 IRE)
0 lux (Illuminator on)

S/N Ratio

>65 dB

Illumination Distance

40 m (131.23 ft)

Illuminator On/Off Control

Auto/Manual

Illuminator Number

2 (IR light)

Pan/Tilt/Rotation Range

Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°

Lens

Lens Type

Manual Vari-focal

Lens Mount

φ14

Focal Length

2.7–12 mm

Max. Aperture

F1.7

Field of View

H: 102°–32°; V: 54°–18°; D: 121°–37°

Iris Control

Fixed

Close Focus Distance

0.8 m (2.62 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

W

45.5 m

(149.28 ft)

18.2 m

(59.71 ft)

9.1 m

(29.86 ft)

4.6 m

(15.09 ft)

T

137.9 m

(452.43 ft)

55.2 m

(181.10 ft)

27.6 m

(99.55 ft)

13.8 m

(45.28 ft)

Video

Video Frame Rate

CVI:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
TVI:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
AHD:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
CVBS:
PAL: 960H
NTSC: 960H

Resolution

1080p (1920 × 1080); 720p (1280 × 720); 960H (960 × 576/960 × 480)

Day/Night

Auto (ICR)/Color/B/W

BLC

BLC; HLC; DWDR

WDR

DWDR

White Balance

Auto; Area white balance

Gain Control

Auto/Manual

Noise Reduction

2D NR

Smart Illumination

Yes

Mirror

Yes

Privacy Masking

Off/On (8 areas, rectangle)

Certification

Certifications

CE (EN55032:2015, EN61000-3-2:2014, EN61000-3-3:2013, EN55024:2010+A1:2015, EN55035:2017, EN50130-4:2011+A1:2014, EN62368-1:2014+A11:2017)
FCC (CFR 47 FCC Part 15 subpartB, ANSI C63.4-2014)

Port

Video Output

Video output choices of CVI/TVI/AHD/CVBS by one BNC port

Power

Power Supply

12 VDC ± 30%

Power Consumption

Max. 4.6 W (12 VDC, IR on)

Environment

Operating Temperature

–30 °C to +60 °C (–22 °F to 140 °F)

Operating Humidity

<95% (RH), non-condensing

Storage Temperature

–30 °C to +60 °C (–22 °F to +140 °F)

Protection

IP67

Structure

Casing

Metal

Product Dimensions

209.6 mm × 90.4 mm × 90.4 mm (8.25" × 3.56" × 3.56")

Packaging Dimensions

250 mm × 135 mm × 110 mm (9.84" × 5.31" × 4.33")

Net Weight

0.59 kg (1.30 lb)

Gross Weight

0.75 kg (1.65 lb)

Installation

Wall mount; ceiling mount; horizontal pole mount

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9792952281

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4.7 ★★★★★
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Siobhan Smith
New York, US
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025
M
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Mariel
Alexandria, US
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool. They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me. They are comfortable to wear, washed and dried easily. The material has some stretch to it, but not a lot. Well made, no stray strings. Perfect fit for me. Just what I was looking for.
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Reviewed in the United States on May 17, 2026
F
Verified Purchase
Finngirl
New York, US
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
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Reviewed in the United States on January 31, 2026
S
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Skurtzo
Belleville, US
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
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Shanna
Bozeman, US
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026

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