A loading unit includes an elongated body, an end effector, and a lighting unit. The elongated body defines a longitudinal axis and has a distal end portion. The end effector is supported on the distal end portion of the elongated body. The lighting unit is disposed in the distal end portion of the elongated body and has a distal surface that is configured to emit light about the end effector to provide illumination of the end effector and an area distal to the end effector.
