This ETC Source Four 750 ellipsoidal light comes with a bulb and a stage pin, but no C - clamp. It's a great lighting option for your stage setup. One thing to note is that it does not include a C - clamp.

To use this ETC Source Four 750 ellipsoidal light, first connect it to a power source using the stage pin. Then, install the bulb if it's not already in place. You can position the light as needed for your stage or event. Remember, since it doesn't come with a C - clamp, you'll need to find another way to secure it. For maintenance, keep the light clean and dry. Check the bulb regularly and replace it when it burns out. If you notice any issues with the light, stop using it and get it checked by a professional.