Hockey is a small ball game, we can determine the most advantageous arrangement based on the level of play and site conditions. Side pole arrangement, corner pole arrangement. The lights focus-point angle have strict requirements, it is should be less than 65°. 

Side pole arrangement: six or eight poles layouts are acceptable. The poles must always situated outside the overrun area as shown in the figures below. The FIH recommend they be ideally sited a minimum of 5m beyond the back-lines and 4m behind the side-lines.