In the video, a person is using a multimeter to measure the voltage of a light bulb. The multimeter is orange and has a black knob on the front. The person is holding the light bulb with one hand while the other hand is holding the multimeter. The light bulb is turned on, and the multimeter is displaying a reading of 20.23 volts. The person is adjusting the dial on the multimeter to get an accurate reading. The background is a brown surface, and there is a red wire connected to the light bulb.