This RGBlink DV4 LED Sending Box comes with a correct power supply, ensuring stable operation. However, it has a known issue where the rear panel near the power supply might be bent.

Using this RGBlink DV4 LED Sending Box is easy. First, make sure you connect the correct power supply to it. Then, you can start using it for your LED display setup. As for the known issue, check the rear panel near the power supply when you receive the product. If you find it bent, it might not affect the basic function, but handle it gently. For maintenance, keep it in a dry and clean place, and avoid dropping or hitting it. Regularly check the power connection to ensure it's stable.