The Kessil Reflector-35 further strengthens the light beam of the best-in-class A360X and A500X for further penetration and contrast. With an easy to attach magnetic design, the reflector focuses the light output and increases the center light intensity by up to 5x while adding a dynamic depth to your tank. This accessory is perfect for deep tanks or SPS corals with very high light demands. Up to 5x center light intensity. Strengthen contrast, depth, light dynamics. Magnetic attachment-no tools required. Works with A500X & A360X models. Beam Angle: 35 degrees. Coverage Area: 20" x 20". Recommended Mounting Height: 8" - 12". Max Light Penetration: Up to 4 feet.