Dahua Security CCTV 4K Starlight HDCVI IR Eyeball Camera HAC-HDW2802T-A

The guide formulates three protection levels according to different system scales and security needs. Please refer to Table 2-1 for more details about three protection levels and corresponding security items.

Protection Level Security Item

Level 1

Protection Facroty Default setting
Password Management
Set reset password info
Use latest firmware
Set account lock
Disable unnecessary function
Enable HTTPS service
Audio and video transmission encryption
System time Calibration
Disable anonymity login
Online upgrade
Check log
Check online users
Use latest version of client
AP hot spot safe application

Level 2

Protection Port management
Hierarchical account management
Limit the max. number of logins
Configure black and white list
Backup config data
Enable RAID backup storage
Safe config SNMP

Level 3

Protection Network log
Enable 802.1x
Device anti-theft
Device anti-damage
Device anti-thunder

Level 1 protection requires minimum security while level 3 protection requires Maximum security. Level 2 protection contains all the security items of level 1 protection and level 3 protection contains all the security items of level 2 protection. Home users and small micro businesses are recommended to configure level 1 protection; medium-sized enterprises are recommended to configure level 2 protectionl large-sized enterprises and infrastructure projects are recommended to configure level 3 protection. Try to configure a higher security level than recommended if the condition permits.

In some countries it's hard to choose the socket type. We offer 4 of them:

• American (A/US)
• Australian (I/AU)
• European (C/EU)
• British (G/UK)

This variety allows making a right choice for any part of world approximately.

American (A/US)
	2 pins not grounded 15 A almost always 100 – 127V Compatible with plug type: A, B
Australian (I/AU)
	2 or 3 pins 2 pins: not grounded / 3 pins: grounded 10 A 220 – 240 V Compatible with plug type: I
European (C/EU)
	2 pins not grounded 2.5 A almost always 220 – 240V  Compatible with plug type: C, D, E, F, H, J, K, L (10 A version), N, O
British (G/UK)
	3 pins grounded 13 A 220 – 240 V Compatible with plug type: G

We hopes that you will manage to choose socket type correctly from this moment.
If you have more questions, please contact us, we'll be glad to help you!

H.265 is a video compression standard designed for the newest generations of high-resolution video. It’s a successor to the widely-used H.264 codec (also called AVC or MPEG-4 Part 10) and offers some major improvements over that now-aging compression scheme. H.265 was developed by the Joint Collaborative Team on Video Coding (JCT-VC), a group of video coding experts that started working on the compression standard back in 2010.

Why Is H.265 Better than H.264?

The H.265 codec offers some major improvements over the H.264 codec, which was first developed in the hazy days of 2003. There are far more improvements that we can cover here, but these are the highlights for consumers.

Better compression

H.265 offers massively improved compression over H.264. The newer codec can achieve nearly double the compression of its predecessor. With H.265, a video of the same apparent visual quality would take up only half as much space. Alternatively, a video of the same file size and bit rate could be significantly better looking. Part of this improvement comes from an increased macroblock size. H.264 allows for only 16 x 16 pixel macroblocks which are too small to be truly efficient in higher-resolution video. H.265 provides for 64 x 64 pixel macroblocks (now called coding tree units or CTUs), allowing for greater encoding efficiency at all resolutions.

Improved intraframe motion prediction

Video compression relies on predicting motion between frames. When there’s no change in a pixel, a video codec can save space by referencing it, rather than reproducing it. So improved motion prediction means improved file size and compression quality. Alongside the improved compression standards in H.265, we also find major improvements in motion prediction and compensation.

Improved intraframe prediction

Video compression also benefits from analyzing “movement” within individual frames, allowing single frames of video to be compressed more efficiently. This can be achieved by essentially describing pixels with a mathematical function rather than actual pixel values. The function takes up less space than pixel data, shrinking file size. However, the codec must support a sufficiently advanced mathematical function for this technique to be truly useful. H.265’s intraframe prediction function is far more detailed than H.264’s, allowing for 33 directions of motion over H.264’s nine directions.

Parallel processing

H.265 uses tiles and slices which can be decoded independently from the rest of a frame. This means that the decoding process can be split up across multiple parallel process threads, taking advantage of more efficient decoding opportunities on now-standard multi-core processors. With video resolutions getting higher, this kind of improved efficiency is required to decode video at a watchable pace on lower-end hardware.

Higher maximum frame size

The world is getting higher-res, and H.265 supports that. With H.265, video can be encoded at up to 8K UHD or 8192 pixels × 4320 pixels. Currently, only a handful of cameras can even produce 8K video, and very few monitors can display that kind of resolution. But just as HD is today’s standard, we can expect 4K and eventually 8K to rise to similar prominence eventually.

OEM stands for Original Equipment Manufacturer. In this case of COFIK, it means the products and their package coming with no logo, especially it means no retail model number on Hikvision products.

OEM hardware usually is packaged for distribution to companies who build systems. These companies are the original equipment manufacturers. This is why OEM products are usually sold in a generic box or wrapper instead of retail packaging. Comparing the same model on our site, the OEM product is 5% less than the branded one with logo and retail box.

COFIK is the first main tech supporter that is in charge of warranty and tech questions, not the local distributor, like Dahua USA or Hikvision USA, no matter the brand ones or OEM ones we have on sale. You should call or mail to use firstly if any problem happens during the operation of the security products.

The main advantage of the OEM or brand ones we have is the price, that is much more easy to check on internet.

The OEM requirement of Hikvision is below:

OEM Only Works When Quantity ordered Meet Request ( Camera > 24 PCS; PTZ > 6 PCS; NVR > 8PCS), Or the model will be the registered one by us;

NO Logo With Grey Box, Please Write Down The Model To Be Printed On Product (Can't Be Similar To Hikvision's)

NTSC and PAL are formats used for displaying videos. The main differences between the two formats are based on their electrical differences, resolution quality and the rate at which broadcasts are displayed. When you put order on the products refer to the video, you should know which system you will need. The easy method is check the below image. NTSC is always used in North America, Japan, and most of South America while PAL is always used in Europe, most of Asia and Oceania, most of Africa, and parts of South America. There is a third standard, called SECAM (Sequential Couleur Avec Memoire or Sequential Color with Memory), that is used in Eastern Europe and France. If your country use SECAM, you could choose PAL as well.