This ETC Source Four Jr ellipsoidal light comes with an Edison plug and a bulb. It's a great lighting solution, though it does not include a C-Clamp.

To use this ETC Source Four Jr ellipsoidal light, first, find a suitable place to set it up. Make sure to connect the Edison plug to a proper power source. Then, insert the provided bulb if it's not already in place. When using, be aware that it doesn't come with a C - Clamp, so you'll need to use other means to secure it if necessary. For maintenance, keep the light clean by gently wiping it with a dry cloth. Don't use any harsh chemicals on it. If there are any issues with the bulb, replace it with a compatible one. Always turn off the power before performing any maintenance work.