This ETC Source Four ellipsoidal light comes with a stage pin but no bulb or C - clamp. It's a great option for stage lighting setups. Please note, it does not include a bulb or a C - clamp.

To use this ETC Source Four ellipsoidal light, first, find a suitable spot on the stage and connect it using the stage pin. You'll need to buy a bulb separately and attach it properly according to the bulb's instructions. Also, if you need a C - clamp, you have to get one on your own. When it comes to maintenance, make sure to keep the light clean. Wipe it gently with a dry cloth regularly. Don't touch the bulb with bare hands as the oil from your skin can damage it. And always turn off the power before any maintenance work.