It depends on a few factors, such as the type of light fixture, the accessibility of the fixture, and whether there is any wiring that needs to be replaced. Most electricians charge by the hour, so it's difficult to give an exact price without knowing more about the job. However, a ballpark estimate would be $75-$100 per hour.

It depends on the type of light fixture, the size of the job, and the experience and location of the electrician. However, a good starting point would be to multiply the cost of the light fixture by 1.5-2.0. For example, if you were replacing a $50 light fixture, you could expect to pay around $75-100 for labor. Keep in mind that this is just a general estimate and that prices may vary depending on your specific situation. Always ask for quotes from multiple electricians before making a decision.