This unit is an ADJ Airstream DMX Bridge but does not come with an external power supply. It has a minor issue where 1 screw on the front is missing. Despite this, it can still effectively perform its lighting control function.

To use this ADJ Airstream DMX Bridge, first connect it to your lighting system according to the general DMX connection methods. Remember, you need to use your own power supply as this unit doesn't include one. When handling it, be careful around the area where the screw is missing to avoid any sharp edges. For maintenance, keep it in a dry and clean place. Regularly check the connection points to make sure they are secure. If you notice any other problems, consult a professional for assistance.