An agricultural sprayer has a tank containing chemicals and a boom arm with a plurality of nozzle assemblies configured to disperse the chemicals in the tank. The nozzle assemblies include a conduit defining a fluid pathway and a spray nozzle in fluid communication with the fluid pathway. A turbine is operatively located within the fluid pathway and a light source is located proximate the spray nozzle and in electrical communication with the turbine. The light source is arranged to direct emitted light into a spray pattern produced by the spray nozzle.
