Night vision problem (UBox)
The camera uses infrared light to provide night vision in dark environments, like most security cameras.
The infrared lights are hidden behind the camera's front face. So, please make sure the camera is not facing a window. Otherwise, the infrared light will not work as expected. Please also make sure nothing is covering the camera itself. Anything too close to the camera's front face will also make the infrared light not work.
For the same reason, if the camera is placed in a very narrow space, you might also get a blurry white image at night.
There is also a small chance that the camera is set to daylight-only mode. Please check the instructions at the link below for switching between daylight-only, night-vision-only, and automatic night vision.
Troubleshooting
-
Please don't cover the camera's front face. A lens is for providing images. The light sensor is for automatical switch between day and night vision. A PIR sensor is for detecting motion. And the IR lights for providing black & white images are hidden behind the front shell on the left and right.

-
Example 1: camera facing a window in the dark. Moving the camera a bit farther from the window will solve this issue.

-
Example 2: a camera placed in a narrow space.
