This ETC Source Four Jr ellipsoidal light comes without a bulb. It features an Edison plug and a C - clamp. Note that the bulb is not included.

To use this ETC Source Four Jr ellipsoidal light, first make sure you have a compatible bulb as it doesn't come with one. Insert the bulb into the fixture carefully. Then, use the C - clamp to securely attach the light to a suitable surface. Connect the Edison plug to a power source. When using, avoid touching the bulb when it's hot to prevent burns. For maintenance, regularly check the C - clamp for tightness and the plug for any signs of wear. If you notice any issues, stop using the light and consult a professional.