Background: To compare bond strength of metal and ceramic brackets bonded with conventional and high power LED light curing units. Materials & methods: A total of 40 teeth were enrolled. Group A were metal brackets bonded with Transbond XT, Group B- ceramic brackets with high power light cured, group C- metal brackets with adhesive light cured conventionally and Group D- ceramic brackets with adhesive light cured. The SBS was measured. The results were analysed using SPSS software. Results: A total of 40 teeth were enrolled. The mean SBS of samples in groups A, B, C and D was 22.08, 11.6, 25.26 and 11.63MPa, respectively Conclusion: The obtained SBS is the same for both bracket types by use of high-power and conventional LED light curing units. Keywords: Bond strength, Ceramic brackets, Metal brackets.