SKU: 9792952281

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

Sale price$106.20 Regular price$118.00
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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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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4.6 ★★★★★
Based on 29 reviews
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Product Reviews
A
Verified Purchase
Akeem
Grantham, US
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
K
Verified Purchase
Kim Groetsch
New York, US
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Juanita
New York, US
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
L
Verified Purchase
Love Leigh Angel
Louisville, US
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person. You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
E
Verified Purchase
$@[)E
Port Orchard, US
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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