This ETC Source Four 750 ellipsoidal light comes with a bulb and a stage pin. It's a great choice for stage lighting. One thing to note is that it doesn't include a C - clamp.

To use this ETC Source Four 750 ellipsoidal light, first make sure you have a proper stage pin connection. Then, insert the bulb into the designated slot. Since it doesn't come with a C - clamp, you'll need to use your own to secure it if required. When using, keep it away from water and high - humidity areas. For maintenance, clean the light regularly with a soft, dry cloth. If the bulb burns out, replace it with a compatible one.