This ETC Source Four 750 ellipsoidal light comes with a bulb and a stage pin. It's a great lighting option for various stage setups. However, it does not include a C - clamp.

Using this ETC Source Four 750 ellipsoidal light is easy. First, connect the stage pin to a suitable power source. Then, insert the bulb if it's not already in place. Place the light where you need it for the stage setup. Remember, this light doesn't come with a C - clamp, so you'll need to use other means to secure it if necessary. When it comes to maintenance, keep the light clean and check the bulb regularly for signs of wear. If the bulb burns out, replace it with a compatible one. Always make sure to turn off the power before any maintenance work.