Broomrape (Phelipanche aegyptiaca ) is an absolute parasite on roots of dicotyledonous plants and reduces the yield of host plant from 5 to 100 percent depending on the severity of the infection. A strong physiological - morphological relationship between parasite and host plant renders the control methods unsuccessful. Tomato is one of the most important vegetables from solanaceae family that is sensitive to broomrape damage. Various environmental stresses associated with a shortage of food supply necessitate crop production at indoor conditions. With appropriate lighting, indoor farming is possible. For this reason, recently the use of light emitting diodes for growing plants in controlled environments has been practiced. Reports indicate that the choice of different LED with specific wavelengths may affect different plant responses such as resistance to environmental stresses. Two varieties of tomato seeds that were resistant and susceptible to the parasite broomrape were planted in a parasite-free and infected medium in a mixture of sand and perlite. The pots were transferred to an incubator under different light levels including white, blue, red and red-blue combination. Blue light was found to leave the greatest inhibitory effects on broomrape's characteristics with the exception of number of necrotic nodes which was affected by red light. Red light and a combination of blue and red light led to increases in peroxidase activity and chlorophyll concentration and relative water content of tomato plants. Though blue light led the decreases in peroxidase activity. A combination of red and blue light led to increases in ascorbate peroxidase and white light led to increases in catalase activity in tomato plants. The two tomato genotypes were not found different in terms of their impacts on the broomrape's growth characteristics. The parasite-resistant genotype of tomato outperformed the other genotype in terms of shoot and root dry masses and root length and volume. Infection to broomrape led to significant decreases in shoot and root dry mass and root volume of tomato, despite increases in root length and catalase, peroxidase and ascorbate peroxidase activities. Keywords : Broomrape, tomato, light levels, antioxidan enzyme