This ETC Source Four Jr ellipsoidal light comes without a bulb or C-clamp. It uses a stage pin. Note that it does not include a bulb or C-Clamp.

Using this ETC Source Four Jr ellipsoidal light is easy. First, make sure you have a compatible bulb and a C - clamp as they are not included. Insert the bulb carefully into the fixture. Then, use the stage pin to connect it to the power source. When using it, avoid touching the bulb when it's hot to prevent burns. For maintenance, regularly check the connections of the stage pin to ensure a stable power supply. If there are any issues with the light, turn it off and disconnect the power before inspecting it.