This ETC Source Four 750 19 - degree ellipsoidal light comes with a stage pin plug and a C - clamp, but no bulb. One thing to note is that the body of the light has been painted.

Using this ETC Source Four 750 19 - degree ellipsoidal light is easy. First, connect the stage pin plug to a proper power source. Then, use the C - clamp to secure the light in place where you need it. Remember, this light doesn't come with a bulb, so you'll need to buy one separately. When it comes to maintenance, make sure to keep the light clean and dry. Avoid using abrasive materials to clean the painted body as it may damage the paint. Also, check the connections regularly to ensure a stable power supply and good performance. If you notice any issues, stop using the light immediately and seek professional help.