Using this ADJ Encore Burst RGBW light is quite straightforward. First, make sure you have your own TRUE1 power cable as it's not included with the unit. Connect the power cable and turn it on. You can use it as a wash light to create a soft, even glow, as a blinder for sudden bright flashes, or as a strobe light for a fast - paced lighting effect. As for the known issues, don't worry too much about the dim pixels or the error message, they won't stop the light from working. When it comes to maintenance, keep the light clean and dry. If you notice any other problems, it's best to consult a professional. And always make sure to turn off the power before any inspection or cleaning to avoid any electrical hazards.