In this paper, the optical properties of the 54[W] LED module have confirmed by changing the angles of LED modules for street light applications. The angle of LED module changed from the $0[^{circ}]$ to $60[^{circ}]$ varying by $20[^{circ}]$ as horizontal direction ${ominus}_1$. Morever, the angle of LED module changed from the $0[^{circ}]$ to $15[^{circ}]$ varying by $5[^{circ}]$ as vertical direction ${ominus}_2$. As a result of simulation, the average illumination was about 17[lux] and the overall illuminance uniformity was 0.29 for a 10.39[m] long and 6[m] wide illuminance area at height of 6[m], which is acceptable for street lighting illumination in the Illuminating Engineering Society(IES) standard.