This ETC Source Four 750 Ellipsoidal Light comes without a bulb and C - Clamp, but features a stage pin. It's important to note that the bulb and C - Clamp are not included in the package.

To use this ETC Source Four 750 Ellipsoidal Light, first, you'll need to get a suitable bulb and a C - Clamp separately as they're not part of the package. Then, attach the light fixture to your stage setup using the stage pin. When it comes to maintenance, keep the light clean and store it in a dry place when not in use. Make sure to replace the bulb as soon as it burns out to keep the light working properly. Also, be careful when handling the fixture to avoid any damage to the stage pin.