Review on YaeTek 9 Channel CCTV Power Supply Box - Reliable Surveillance Camera Key Lock - DC 12V 10A (120W 9OutPut) by Leslie Matlak

Review updated: My mistake! This power supply requires a GROUNDED POWER SUPPLY. I had a power panel that I was using to test a remote ground plug without realizing it. As the earth levitated, a lot of noise was sent into the energy and this could be seen in the camera. But with proper grounding, the picture cleared up. The photo of the mesh doors shows the noise from the camera using this power supply when not grounded and the last photo then shows much less noise when properly grounded. First Rating: Loud performance. Now when I switch to a power supply I get a clean picture but that power supply makes a lot of hum noise. See pictures.