The Ultra High Definition (UHD) and High Definition (HD) are two video resolution standards, and the main differences between them are resolution and picture quality. Resolution HD video is has 1920×1080 pixels, also known as 1080p. While UHD video usually has a resolution of 3840×2160 pixels, also known as 4K. Ultra HD has more pixels, […]

There are many reasons why solar panels do not charge batteries, but here are some possible reasons:  Damaged connection The cable or connector connecting the solar panel to the battery may be damaged or loose, causing the electricity to be transmitted to the battery.  Inverter failure An inverter is a device that converts the solar […]

The history of surveillance cameras dates back to the late 19th and early 20th centuries, when some early forms of surveillance systems began to emerge. The following is the history of the surveillance cameras: 1927 German engineer Walter Bruch invented the “Fernsehkanera” to monitor the V-2 rocket launch site, considered to be a form of […]

Are you looking for PTZ dome cameras for your home or business? Or, you want to know how to set up PTZ presets on your PTZ dome IP cameras? Keep reading to find the best and affordable PTZ speed dome cameras, and you can learn to set up preset and tour on PTZ dome security […]

IP68 refers to a dust and waterproof grade standard issued by the International Electrotechnical Commission (International Electrotechnical Commission). The IP represents the “Ingress Protection”, or the level of protection. The first number indicates the dust level, ranging from 0 to 6, and the larger the number, the better the dust performance. In IP68, the number […]

A security camera is a device used to monitor and protect sites, and its working principle can be simply described as follows: Camera image acquisition The security camera converts the optical information in the scene into an electrical signal through a light sensor (such as a CCD or a CMOS) to form an image. Video […]