This ETC Source Four Jr ellipsoidal light comes with an Edison plug and a bulb. Note that it doesn't include a C-Clamp.

Using this ETC Source Four Jr light is easy. First, connect it to a power source using the Edison plug. You can then install the included bulb. Since it doesn't come with a C - clamp, you'll need to use your own if you want to secure it. When using, make sure the power supply matches the requirements of the light. For maintenance, keep the light clean and dry. Check the bulb regularly and replace it when it burns out. Avoid using it in wet or extremely dusty environments to ensure its long - term performance.