This ETC Source Four ellipsoidal light comes with a bulb, an Edison plug, and a C - clamp, offering great lighting functionality.

To use this ETC Source Four light, first connect the Edison plug to a power source. Then, use the C - clamp to securely attach the light to a suitable surface. When it's on, you can enjoy its bright and focused illumination. Remember to turn off the power before any adjustments. For maintenance, keep the bulb clean and replace it when it burns out. Also, check the C - clamp regularly to make sure it's tightly fastened.