This ETC Source Four 750 ellipsoidal light comes with a bulb and a stage pin, but no C - clamp. Key note: it does not include a C - Clamp.

To use this ETC Source Four 750 ellipsoidal light, first connect the stage pin to a suitable power source. Then, install the provided bulb carefully. Since it doesn't come with a C - clamp, you'll need to use your own clamping device if you want to secure it in place. When using, make sure the area around the light is well - ventilated to avoid overheating. For maintenance, regularly check the bulb for signs of wear and replace it when necessary. Keep the light clean by gently wiping it with a dry cloth. If you encounter any problems, consult a professional technician.