The reduction of fish bycatch in prawn trawl fisheries has been a major point of interest over the last two decades with research being invested into the ways of optimising the gear. This paper presents the results of the first commercial trial in Queensland’s Moreton Bay Prawn Trawl fishery of the light bycatch reduction device (BRD). This device, when attached to the headline of the prawn trawl, illuminates the area in front of the trawl. The lights were tested with paired trawling and a total of 12 tows across three nights were conducted. It was hypothesised that the increased visual warning would result in a reduction of fish species that are caught in the net with no effect on target prawn catch. These preliminary results show that there is a decrease in fish bycatch and crabs with the use of the lights. The catch rate of prawn as well as cephalopods and other crustaceans such as mantis shrimp were increased. The benefits of decreasing fish bycatch include reduced sorting time and increased survival of fish species that are subsequently discarded. Reducing the capture of crabs will also result in higher quality of catch due to less damage to the prawns.