A total of 1200 poults were housed in a split plot arrangment to evaluate four different dietary treatments and three light treatments. Pre-starter and starter diets contained 0 or 10% Tower rapeseed meal (RSM), Candle RSM, combination of Tower and Candle RSM (50:50), and 0 or 20% of these RSM treatments, respectively. Grower, developer, and finisher diets contained 0 or 30% of these RSM treatments, respectively. The light treatments tested were continuous (23L:1D), intermittent (4L:2D), and total darkness. Tower and Candle RSM, singularly or in combination, when included in turkey diets resulted in significantly lower mortality, higher live weights, improved feed conversion, higher percentage Grade A carcasses, and improved monetary returns. There were no significant differences observed for any of these traits for turkeys raised under continuous or intermittent lighting or total darkness. There was, however, some indication that the turkeys tended to perform better under intermittent lighting. No light X diet interaction was observed for any of the traits measured indicating that the turkeys responded in a similar manner regardless of the diet or light treatment.