For a complete system, you need the DC-Regulated Fiber Optic Illuminator, a light pipe, and a light pipe adapter.
1) Illuminator The internal power supply to the halogen bulb is stabilized to ±0.5%, eliminating problems due to variation in input line voltages. Front-panel dial controls light output from 0 to 100%. Remotely control the light output using a 0 to 5 VDC signal. Stackable housing is heavy-duty steel. What's included: a 150-watt bulb and 6-ft power cord with three-prong plug. 2) Light Pipes Select single or dual light pipes below. Flexible gooseneck is constructed of glass fibers sheathed in a steel monocoil. 3) Adapters 09741-40 Illuminator adapter. Required for single light pipe 41720-70 09741-41 Illuminator adapter. Required for dual light pipe 41720-60