Comprising everything needed to use a Broncolor HMI F200 fixture with an ellipsoidal, the Source Four Beam Ring Set II includes the dedicated adapter along with the 200W-rated Extension for GZY9.5 Lamp Socket and a frosted daylight-balanced bulb rated at 200W. The sum of these components allows you to benefit from both the output of the HMI F200 along with the control and flexibility of a Source Four Ellipsoidal.