The ARL is a specification grade fixture designed for maximum aesthetic appeal with mast arm mount (2-3/8” O.D.) and straight arm mount (3”-4” square/round pole) Impact & weather resistant fixture with die cast aluminum housings and polycarbonate lenses. Features proprietary optics engineered for 4-pole (AT4) or 6-pole (AT6) tennis court installations (can also be used for many other outdoor lighting applications).