This thesis is study and design of the street lighting. for the Allocation Less Than 99 Units.According to EN 13201 the road has width 18 m in major road and width 8 m in minor road. The width of the road surface meets the land allocation Act B.E. 2543. Stipulated that there should be at least equal to the width of 6 m. The design standards EN 13201, the illuminance should be greater than or equal to 0.25. The design of this project. The use of the village Villa Arcadia Srinakarin. It has an area of residence, each household is 50 square two-meters. Total of 68 residential homes and one office. Use DIALux 4.12 to assist in the design and positioning of luminaire according to the standard. From design and test the illuminance. Found that the overall uniformity. Compared to install in actual location with the difference does not exceed 10%. Therefore, the design using DIALux 4.12 to help in the design of the lighting. It to save time and can be used to install in actual location.