This ellipsoidal light comes with a stage pin plug and a bulb. However, a C - clamp is not included.

Using this ETC Source Four 750 19 Degree Ellipsoidal Light is quite straightforward. First, connect the stage pin plug to a suitable power source. Once it's powered on, you can start using it to light up the stage. Remember, since it doesn't come with a C - clamp, you'll need to find your own way to mount it securely. When using, keep it away from flammable materials. For maintenance, regularly check the bulb. If it starts to dim or flicker, replace it with a new one. Also, make sure to keep the light clean by gently wiping it with a dry cloth every once in a while.